An electronic engine control unit (ECU) is a “computer” that controls the entire vehicle system. The ECU affects both the operation of a single sensor and the entire vehicle. Therefore, an electronic engine control unit is very important in a modern car.
The ECU is most often replaced by the following terms: Electronic engine management system (ECM), controller, brains, firmware. Therefore, if you hear one of these terms, then know that we are talking about the "brains", the main processor of your car. In other words, the ECM, ECU, CONTROLLER are one and the same.
Where is the ecu (controller, brain)?
The electronic engine management system (ECU, ECM) is mounted under the central dashboard of your car's instrument panel. To gain access to it, you need to unscrew the fasteners of the side frame of the torpedo with a Phillips screwdriver.
The principle of operation of the controller (ECU)
During the entire operation of the engine, the electronic engine control unit receives, processes, manages systems and sensors that affect both engine operation and secondary engine elements (exhaust system).
The controller uses data from the following sensors:
- (Crankshaft position sensor).
- (Momentary air flow sensor).
- (Coolant temperature sensor).
- (Throttle position sensor).
- (Oxygen sensor).
- (Knock sensor).
- (Speed sensor).
- And other sensors.
Receiving data from the sources listed above, the ECU controls the operation of the following sensors and systems:
- (Fuel pump, pressure regulator, injectors).
- Ignition system.
- (DHH, RHH).
- Adsorber.
- Radiator fan.
- Self diagnostic system.
Also, the ECM (ecu) has three types of memory:
- Programmable Read Only Memory (PROM); Contains the so-called firmware, i.e. a program in which the main calibration readings are loaded, an engine control algorithm. This memory is not erased when the power is turned off and is permanent. Can be reprogrammed.
- Random Access Memory (RAM); It is a temporary memory in which system errors and measured parameters are stored. This memory is erased when the power is turned off.
- Electrically reprogrammable memory (EPROM). This type of memory can be said to be the protection of the car. It temporarily stores the codes and passwords of the car's anti-theft system. The immobilizer and EEPROM are compared with data, after which the engine can be started.
Types of ECU (ESUD, controller). What ECUs are installed on the VAZ?
"January-4", "GM-09"
The very first controllers on SAMARA were January-4, GM - 09. They were installed on the first models until 2000 of release. These models were produced both with and without a resonant knock sensor.
The table contains two columns: 1st column - ECU number, second column - brand of "brains", firmware version, toxicity rate, distinctive features.
2111-1411020-22 | January-4, without DC, RCO (resistor), 1st Ser. version |
2111-1411020-22 | January-4, without dk, rso, 2nd ser. version |
2111-1411020-22 | January-4, without dk, rso, 3rd ser. version |
2111-1411020-22 | January-4, without dk, rso, 4th ser. version |
2111-1411020-20 | GM,GM EFI-4 ,2111,with DC, US-83 |
2111-1411020-21 | GM, GM EFI-4, 2111, with DC, EURO-2 |
2111-1411020-10 | GM,GM EFI-4 2111,with dc |
2111-1411020-20 h | GM, pso |
VAZ 2113-2115 since 2003 equipped with the following types of ECU:
"January 5.1.x"
- simultaneous injection;
- phased injection.
Interchangeable with "VS (Itelma) 5.1", "Bosch M1.5.4"
Bosch M1.5.4
The following types of hardware implementation are distinguished:
- simultaneous injection;
- in pairs - parallel injection;
- phased injection.
Bosch MP7.0
As a rule, this type of controller is put on the market, it is installed at the factory in a single volume. It has a standard 55-pin connector. Able to work with crossover on other types of ECM.
Bosch M7.9.7
These brains began to be part of the car from the end of 2003. This controller has its own connector that is not compatible with connectors prior to this model. This type of ECU is installed on a VAZ with a EURO-2 and EURO-3 toxicity standard. This ECM is lighter and smaller than previous models. There is also a more reliable connector with increased reliability. They include a switch, which in general will increase the reliability of the controller.
This ECU is in no way compatible with previous controllers.
VS 5.1
The following types of hardware implementation are distinguished:
- simultaneous injection;
- in pairs - parallel injection;
- phased injection.
"January 7.2."
This type of ECU is made for a different type of wiring (81 pins) and is similar to Bosch 7.9.7+. This type of ECU is produced both by Itelma and Avtel. Interchangeable with Bosch M.7.9.7. In terms of software, 7.2 is a follow-up to January 5th.
This table shows the variations of the BOSCH ECU, 7.9.7, January 7.2, Itelma, installed exclusively on the VAZ 2109-2115 with a 1.5l 8kl engine.
2111-1411020-80 | BOSCH, 7.9.7, E-2, 1.5 l, 1st ser. version |
2111-1411020-80h | BOSCH, 7.9.7, E-2, 1.5 L, tuning version |
2111-1411020-80 | BOSCH, 7.9.7+, E-2, 1.5 L |
2111-1411020-80 | BOSCH, 7.9.7+, E-2, 1.5 L |
2111-1411020-30 | BOSCH, 7.9.7, E-3, 1.5 l, 1-ser. version |
2111-1411020-81 | January 7.2, E-2, 1.5 L, 1st version, unsuccessful, replace A203EL36 |
2111-1411020-81 | January 7.2, E-2, 1.5 L, 2nd version, unsuccessful, replace A203EL36 |
2111-1411020-81 | January 7.2, E-2, 1.5 l, 3rd version |
2111-1411020-82 | Itelma, dk, E-2, 1.5 L, 1st version |
2111-1411020-82 | Itelma, dk, E-2, 1.5 L, 2nd version |
2111-1411020-82 | Itelma, dk, E-2, 1.5 L, 3rd version |
2111-1411020-80 h | BOSCH, 7.9.7, without DC, E-2, din, 1.5 l |
2111-1411020-81 h | January 7.2, without dk, co, 1.5 l |
2111-1411020-82h | Itelma, without DC, co, 1.5 L |
Below is a table with the same ECUs, but for engines with a volume of 1.6l 8kl.
21114-1411020-30 | BOSCH, 7.9.7, E-2, 1.6 l, 1st ser, (buggy software). |
21114-1411020-30 | BOSCH, 7.9.7, E-2, 1.6 l, 2nd ser |
21114-1411020-30 | BOSCH, 7.9.7+, E-2, 1.6 l, 1st ser |
21114-1411020-30 | BOSCH, 7.9.7+, E-2, 1.6 l, 2nd ser |
21114-1411020-20 | BOSCH, 7.9.7+, E-3, 1.6 l, 1st ser |
21114-1411020-10 | BOSCH, 7.9.7, E-3, 1.6 l, 1st ser |
21114-1411020-40 | BOSCH, 7.9.7, E-4, 1.6 l |
21114-1411020-31 | January 7.2, E-2, 1.6 l, 1st series - unsuccessful |
21114-1411020-31 | January 7.2, E-2, 1.6 l, 2nd series |
21114-1411020-31 | January 7.2, E-2, 1.6 l, 3rd series |
21114-1411020-31 | January 7.2+, E-2, 1.6L, 1st series, new hardware version |
21114-1411020-32 | Itelma 7.2, E-2, 1.6 l, 1st series |
21114-1411020-32 | Itelma 7.2, E-2, 1.6 l, 2nd series |
21114-1411020-32 | Itelma 7.2, E-2, 1.6 l, 3rd series |
21114-1411020-32 | Itelma 7.2+, E-2, 1.6 L, 1st series, new hardware version |
21114-1411020-30 h | BOSCH, dk, E-2, din, 1.6 l |
21114-1411020-31 h | January 7.2, without dk, co, 1.6 l |
"January 5.1"
All types of controllers of their type are built on the same platform and have differences most often in the switching of injectors and the DC heater.
Let's look at the following example ECU firmware January 5.1: 2112-1411020-41 and 2111-1411020-61. The first version has a phased injection and an oxygen sensor, the second version differs only in that it has a parallel injection. Conclusion - the difference between the ecu data is only in the firmware, so they can be interchanged.
"M7.3."
Wrong name - January 7.3. This is the last type of controller that is currently being installed at AvtoVAZ. This type of ECU has been installed since 2007. on a VAZ with a EURO-3 toxicity standard.
The manufacturers of this computer are two Russian companies: Itelma and Avtel.
The table below shows ECUs for engines with EURO-3 and Euro-4 toxicity standards.
How to identify an ECU?
To find out how to identify your controller, you will have to remove the side frame of the torpedo. Remember your ECU number and find it among our tables.
Also, some on-board computers show the ECU type and firmware number.
ECU diagnostics
ECU diagnostics is a reading of errors recorded in the memory of the controller. Reading is performed using special equipment: PC, cable, etc. through the diagnostic K-line. You can also get by with an on-board computer that has the functions of reading ECM errors.
Welcome!
VAZ engine diagnostics
In this section you can find information about factory firmware and the most common problems with them. Troubleshooting methods in a number of emerging cases. Fault codes and their most common causes.
Tables of typical parameters and tightening torques for threaded connections
January 4
Table of typical parameters, for engine 2111
Parameter | Name | Unit or state | Ignition on | Idling COEFFF
| Fuel correction factor
|
| 0,9-1
| 1-1,1
|
EFREQ
| Frequency mismatch for idling
| rpm
|
| ±30 |
FAZ
| Fuel injection phase
| deg.r.h.
| 162
| 312
|
FREQ
| Speed
| rpm
| 0
| 840-880(800±50)** |
FREQX
| Idle speed
| rpm
| 0
| 840-880(800±50)** |
FSM
| Idle control position
| step
| 120
| 25-35
|
INJ
| Injection pulse duration
| ms
| 0
| 2,0-2,8(1,0-1,4)**
|
INPLAM*
| Sign of oxygen sensor operation
| Yes/No
| RICH
| RICH |
JADET
| Voltage in the detonation signal processing channel
| mV
| 0
| 0
|
JAIR
| Air flow
| kg/hour
| 0
| 7-8
|
JALAM*
| Input-referred filtered oxygen sensor signal
| mV
| 1230,5
| 1230,5
|
JARCO
| Voltage from CO potentiometer
| mV
| by toxicity
| by toxicity |
JATAIR*
| Voltage from air temperature sensor
| mV
| -
| -
|
JATHR
| Throttle position sensor voltage
| mV
| 400-600
| 400-600
|
JATWAT
| Voltage from coolant temperature sensor
| mV
| 1600-1900
| 1600-1900
|
JAUACC
| Voltage in the car's on-board network
| IN
| 12,0-13,0
| 13,0-14,0
|
JDKGTC
| Dynamic correction factor for cyclic filling with fuel
|
| 0,118
| 0,118
|
JGBC
| Filtered cyclic filling with air
| mg/tact
| 0
| 60-70
|
JGBCD
| Unfiltered cyclic filling with air according to the DMRV signal
| mg/tact
| 0
| 65-80
|
JGBCG
| Expected cyclic air filling with incorrect readings of the mass air flow sensor
| mg/tact
| 10922
| 10922
|
JGBCIN
| Cyclic filling with air after dynamic correction
| mg/tact
| 0
| 65-75
|
JGTC
| Cyclic fueling
| mg/tact
| 0
| 3,9-5
|
JGTCA
| Asynchronous cyclic fuel supply
| mg
| 0
| 0
|
JKGBC*
| Barometric correction factor
|
| 0
| 1-1,2
|
JQT
| Fuel consumption
| mg/tact
| 0
| 0,5-0,6
|
JSPEED
| Current vehicle speed
| km/h
| 0
| 0
|
JURFXX
| Tabular frequency setting at idle. Resolution 10 rpm
| rpm
| 850(800)**
| 850(800)**
|
NUACC
| Quantized voltage of the onboard network
| IN
| 11,5-12,8
| 12,5-14,6
|
RCO
| Fuel supply correction factor from CO-potentiometer
|
| 0,1-2
| 0,1-2
|
RXX
| Sign of idling
| Yes/No
| NO
| EAT |
SSM
| Setting the idle speed controller
| step
| 120
| 25-35
|
TAIR*
| Air temperature in the intake manifold
| deg.С
| -
| -
|
THR
| Current Throttle Position
| %
| 0
| 0
|
TWAT
|
| deg.С
| 95-105
| 95-105
|
UGB
| Setting the air flow for the idle air control
| kg/hour
| 0
| 9,8
|
UOZ
| Ignition advance angle
| deg.r.h.
| 10
| 13-17
|
UOZOC
| Ignition timing for octane corrector
| deg.r.h.
| 0
| 0
|
UOZXX
| Ignition timing for idling
| deg.r.h.
| 0
| 16
|
VALF
| The composition of the mixture that determines the fuel supply in the engine
|
| 0,9
| 1-1,1
|
|
---|
* These parameters are not used for diagnostics of this engine management system.
** For multiport sequential fuel injection system.
(for engines 2111, 2112, 21045)
Table of typical parameters, for the VAZ-2111 engine (1.5 l 8 cells)
Parameter | Name | Unit or state | Ignition on | Idling IDLING
|
| Not really
| No
| Yes |
ZONE REGULATOR O2
|
| Not really
| No
| Not really |
O2 LEARNING
|
| Not really
| No
| Not really |
PAST O2
|
| poor/rich
| Poor
| poor/rich |
CURRENT O2
|
| poor/rich
| Bedn
| poor/rich |
T.COOL.L.
| Coolant temperature
| deg.С
| (1)
| 94-104
|
AIR/FUEL
| Air/fuel ratio
|
| (1)
| 14,0-15,0
|
POL.D.Z.
|
| %
| 0
| 0
|
OB.DV
|
| rpm
| 0
| 760-840
|
OB.DV.XX
|
| rpm
| 0
| 760-840
|
DESIRED POL.I.X.
|
| step
| 120
| 30-50
|
CURRENT P.I.X.
|
| step
| 120
| 30-50
|
COR.VR.VP.
|
|
| 1
| 0,76-1,24
|
W.O.Z.
| Ignition advance angle
| deg.r.h.
| 0
| 10-20
|
SK.AVT.
| Current vehicle speed
| km/h
| 0
| 0
|
BOARD NAP.
| On-board network voltage
| IN
| 12,8-14,6
| 12,8-14,6
|
J.OB.XX
|
| rpm
| 0
| 800(3)
|
NAP.D.O2
|
| IN
| (2)
| 0,05-0,9
|
SENS O2 READY
|
| Not really
| No
| Yes |
RATE.O.D.O2
|
| Not really
| NO
| YES |
VR.VLOOKUP
|
| ms
| 0
| 2,0-3,0
|
MA.R.V.
| Mass air flow
| kg/hour
| 0
| 7,5-9,5
|
CEC.RV.
| Cycle air flow
| mg/tact
| 0
| 82-87
|
CH.RAS.T.
| Hourly fuel consumption
| l/hour
| 0
| 0,7-1,0
|
|
---|
Table note:
Table of typical parameters, for the VAZ-2112 engine (1.5 l 16 cells)
Parameter | Name | Unit or state | Ignition on | Idling IDLING
| Sign of engine idling
| Not really
| No
| Yes |
O2 LEARNING
| Sign of learning fuel supply by oxygen sensor signal
| Not really
| No
| Not really |
PAST O2
| The state of the oxygen sensor signal in the last calculation cycle
| poor/rich
| Poor
| poor/rich |
CURRENT O2
| The current state of the oxygen sensor signal
| poor/rich
| Bedn
| poor/rich |
T.COOL.L.
| Coolant temperature
| deg.С
| 94-101
| 94-101
|
AIR/FUEL
| Air/fuel ratio
|
| (1)
| 14,0-15,0
|
POL.D.Z.
| Throttle position
| %
| 0
| 0
|
OB.DV
| Motor rotation speed (resolution 40 rpm)
| rpm
| 0
| 760-840
|
OB.DV.XX
| Engine speed at idle (resolution 10 rpm)
| rpm
| 0
| 760-840
|
DESIRED POL.I.X.
| Desired idle speed control position
| step
| 120
| 30-50
|
CURRENT P.I.X.
| The current position of the idle speed control
| step
| 120
| 30-50
|
COR.VR.VP.
| Injection pulse width correction factor based on DC signal
|
| 1
| 0,76-1,24
|
W.O.Z.
| Ignition advance angle
| deg.r.h.
| 0
| 10-15
|
SK.AVT.
| Current vehicle speed
| km/h
| 0
| 0
|
BOARD NAP.
| On-board network voltage
| IN
| 12,8-14,6
| 12,8-14,6
|
J.OB.XX
| Desired idle speed
| rpm
| 0
| 800
|
NAP.D.O2
| Oxygen sensor signal voltage
| IN
| (2)
| 0,05-0,9
|
SENS O2 READY
| Oxygen sensor readiness for operation
| Not really
| No
| Yes |
RATE.O.D.O2
| The presence of a controller command to turn on the DC heater
| Not really
| NO
| YES |
VR.VLOOKUP
| Fuel injection pulse duration
| ms
| 0
| 2,5-4,5
|
MA.R.V.
| Mass air flow
| kg/hour
| 0
| 7,5-9,5
|
CEC.RV.
| Cycle air flow
| mg/tact
| 0
| 82-87
|
CH.RAS.T.
| Hourly fuel consumption
| l/hour
| 0
| 0,7-1,0
|
|
---|
Table note:
(1) - Parameter value is not used for ECM diagnostics.
(2) - When the oxygen sensor is not ready for operation (not warmed up), the sensor output voltage is 0.45V. After the sensor warms up, the signal voltage with the engine off will be less than 0.1V.
Table of typical parameters, for the VAZ-2104 engine (1.45 l 8 cells)
Parameter | Name | Unit or state | Ignition on | Idling IDLING
| Sign of engine idling
| Not really
| No
| Yes |
ZONE REGULATOR O2
| Sign of work in the adjustment zone by the oxygen sensor
| Not really
| No
| Not really |
O2 LEARNING
| Sign of learning fuel supply by oxygen sensor signal
| Not really
| No
| Not really |
PAST O2
| The state of the oxygen sensor signal in the last calculation cycle
| poor/rich
| poor/rich
| poor/rich |
CURRENT O2
| The current state of the oxygen sensor signal
| poor/rich
| poor/rich
| poor/rich |
T.COOL.L.
| Coolant temperature
| deg.С
| (1)
| 93-101
|
AIR/FUEL
| Air/fuel ratio
|
| (1)
| 14,0-15,0
|
POL.D.Z.
| Throttle position
| %
| 0
| 0
|
OB.DV
| Motor rotation speed (resolution 40 rpm)
| rpm
| 0
| 800-880
|
OB.DV.XX
| Engine speed at idle (resolution 10 rpm)
| rpm
| 0
| 800-880
|
DESIRED POL.I.X.
| Desired idle speed control position
| step
| 35
| 22-32
|
CURRENT P.I.X.
| The current position of the idle speed control
| step
| 35
| 22-32
|
COR.VR.VP.
| Injection pulse width correction factor based on DC signal
|
| 1
| 0,8-1,2
|
W.O.Z.
| Ignition advance angle
| deg.r.h.
| 0
| 10-20
|
SK.AVT.
| Current vehicle speed
| km/h
| 0
| 0
|
BOARD NAP.
| On-board network voltage
| IN
| 12,0-14,0
| 12,8-14,6
|
J.OB.XX
| Desired idle speed
| rpm
| 0
| 840(3)
|
NAP.D.O2
| Oxygen sensor signal voltage
| IN
| (2)
| 0,05-0,9
|
SENS O2 READY
| Oxygen sensor readiness for operation
| Not really
| No
| Yes |
RATE.O.D.O2
| The presence of a controller command to turn on the DC heater
| Not really
| NO
| YES |
VR.VLOOKUP
| Fuel injection pulse duration
| ms
| 0
| 1,8-2,3
|
MA.R.V.
| Mass air flow
| kg/hour
| 0
| 7,5-9,5
|
CEC.RV.
| Cycle air flow
| mg/tact
| 0
| 75-90
|
CH.RAS.T.
| Hourly fuel consumption
| l/hour
| 0
| 0,5-0,8
|
|
---|
Table note:
(1) - Parameter value is not used for ECM diagnostics.
(2) - When the oxygen sensor is not ready for operation (not warmed up), the sensor output voltage is 0.45V. After the sensor warms up, the signal voltage with the engine off will be less than 0.1V.
(3) - For controllers with later software versions, the desired idle speed is 850 rpm. Accordingly, the tabular values of the OB.DV parameters also change. and OB.DV.XX.
(for engines 2111, 2112, 21214)
Table of typical parameters, for engine 2111
Parameter | Name | Unit or state | Ignition on | Idling (800 rpm) | Idling (3000 rpm) TL
| Load parameter
| msec
| (1)
| 1,4-2,1
| 1,2-1,6
|
UB
| On-board network voltage
| IN
| 11,8-12,5
| 13,2-14,6
| 13,2-14,6
|
TMOT
|
| deg.С
| (1)
| 90-105
| 90-105
|
ZWOUT
| Ignition advance angle
| deg.r.h.
| (1)
| 12±3
| 35-40
|
DKPOT
| Throttle position
| %
| 0
| 0
| 4,5-6,5
|
N40
|
| rpm
| (1)
| 800±40
| 3000
|
TE1
| Fuel injection pulse duration
| msec
| (1)
| 2,5-3,8
| 2,3-2,95
|
MOMPOS
| The current position of the idle speed control
| step
| (1)
| 40±15
| 70-85
|
N10
|
| rpm
| (1)
| 800±30
| 3000
|
QADP
|
| kg/hour
| ±3
| ±4*
| ±1 |
ML
| Mass air flow
| kg/hour
| (1)
| 7-12
| 25±2 |
USVK
|
| IN
| 0,45
| 0,1-0,9
| 0,1-0,9
|
FR
|
|
| (1)
| 1±0.2
| 1±0.2 |
TRA
|
| msec
| ±0.4
| ±0.4*
| (1)
|
FRA
|
|
| 1±0.2
| 1±0.2*
| 1±0.2 |
TATE
|
| %
| (1)
| 0-15
| 30-80
|
USHK
|
| IN
| 0,45
| 0,5-0,7
| 0,6-0,8
|
TANS
|
| deg.С
| (1)
| -20...+60
| -20...+60
|
BSMW
|
| g
| (1)
| -0,048
| -0,048
|
FDKHA
| Altitude adaptation factor
|
| (1)
| 0,7-1,03*
| 0,7-1,03
|
RHSV
|
| Ohm
| (1)
| 9-13
| 9-13
|
RHSH
|
| Ohm
| (1)
| 9-13
| 9-13
|
FZABGS
|
|
| (1)
| 0-15
| 0-15
|
QREG
|
| kg/hour
| (1)
| ±4*
| (1)
|
LUT_AP
|
|
| (1)
| 0-6
| 0-6
|
LUR_AP
|
|
| (1)
| 6-6,5(6-7,5)***
| 6,5(15-40)***
|
ASA
| Adaptation parameter
|
| (1)
| 0,9965-1,0025**
| 0,996-1,0025
|
DTV
|
| msec
| ±0.4
| ±0.4*
| ±0.4 |
ATV
|
| sec
| (1)
| 0-0,5*
| 0-0,5
|
TPLRVK
|
| sec
| (1)
| 0,6-2,5
| 0,6-1,5
|
B_LL
| Sign of engine idling
| Not really
| NO
| YES
| NO |
B_KR
| Knock control active
| Not really
| (1)
| YES
| YES |
B_KS
|
| Not really
| (1)
| NO
| NO |
B_SWE
|
| Not really
| (1)
| NO
| NO |
B_LR
|
| Not really
| (1)
| YES
| YES |
M_LUERKT
| Misfire
| Yes/No
| (1)
| NO
| NO |
B_ZADRE1
|
| Not really
| (1)
| YES*
| (1)
|
B_ZADRE3
|
| Not really
| (1)
| (1)
| YES
|
|
---|
Table of typical parameters, for engine 2112
Parameter | Name | Unit or state | Ignition on | Idling (800 rpm) | Idling (3000 rpm) TL
| Load parameter
| msec
| (1)
| 1,4-2,0
| 1,2-1,5
|
UB
| On-board network voltage
| IN
| 11,8-12,5
| 13,2-14,6
| 13,2-14,6
|
TMOT
| coolant temperature
| deg.С
| (1)
| 90-105
| 90-105
|
ZWOUT
| Ignition advance angle
| deg.r.h.
| (1)
| 12±3
| 35-40
|
DKPOT
| Throttle position
| %
| 0
| 0
| 4,5-6,5
|
N40
| Engine speed
| rpm
| (1)
| 800±40
| 3000
|
TE1
| Fuel injection pulse duration
| msec
| (1)
| 2,5-3,5
| 2,3-2,65
|
MOMPOS
| The current position of the idle speed control
| step
| (1)
| 40±10
| 70-80
|
N10
| Idle speed
| rpm
| (1)
| 800±30
| 3000
|
QADP
| Idle Air Flow Adaptation Variable
| kg/hour
| ±3
| ±4*
| ±1 |
ML
| Mass air flow
| kg/hour
| (1)
| 7-10
| 23±2 |
USVK
| Control oxygen sensor signal
| IN
| 0,45
| 0,1-0,9
| 0,1-0,9
|
FR
| Correction coefficient for fuel injection time according to UDC signal
|
| (1)
| 1±0.2
| 1±0.2 |
TRA
| Additive component of self-learning correction
| msec
| ±0.4
| ±0.4*
| (1)
|
FRA
| Multiplicative component of self-learning correction
|
| 1±0.2
| 1±0.2*
| 1±0.2 |
TATE
| Canister Purge Signal Duty Cycle
| %
| (1)
| 0-15
| 30-80
|
USHK
| Diagnostic oxygen sensor signal
| IN
| 0,45
| 0,5-0,7
| 0,6-0,8
|
TANS
| Intake air temperature
| deg.С
| (1)
| -20...+60
| -20...+60
|
BSMW
| Filtered Rough Road Sensor Signal Value
| g
| (1)
| -0,048
| -0,048
|
FDKHA
| Altitude adaptation factor
|
| (1)
| 0,7-1,03*
| 0,7-1,03
|
RHSV
| Shunt resistance in the heating circuit UDC
| Ohm
| (1)
| 9-13
| 9-13
|
RHSH
| Shunt resistance in the heating circuit of the FDC
| Ohm
| (1)
| 9-13
| 9-13
|
FZABGS
| Emission Misfire Counter
|
| (1)
| 0-15
| 0-15
|
QREG
| Idle air flow parameter
| kg/hour
| (1)
| ±4*
| (1)
|
LUT_AP
| Measured amount of uneven rotation
|
| (1)
| 0-6
| 0-6
|
LUR_AP
| Threshold value of uneven rotation
|
| (1)
| 6-6,5(6-7,5)***
| 6,5(15-40)***
|
ASA
| Adaptation parameter
|
| (1)
| 0,9965-1,0025**
| 0,996-1,0025
|
DTV
| Injector influence factor on mixture adaptation
| msec
| ±0.4
| ±0.4*
| ±0.4 |
ATV
| Integral part of the feedback delay on the second sensor
| sec
| (1)
| 0-0,5*
| 0-0,5
|
TPLRVK
| O2 sensor signal period before catalytic converter
| sec
| (1)
| 0,6-2,5
| 0,6-1,5
|
B_LL
| Sign of engine idling
| Not really
| NO
| YES
| NO |
B_KR
| Knock control active
| Not really
| (1)
| YES
| YES |
B_KS
| Anti-knock protection active
| Not really
| (1)
| NO
| NO |
B_SWE
| Bad Road for Misfire Diagnosis
| Not really
| (1)
| NO
| NO |
B_LR
| Sign of work in the control zone according to the control oxygen sensor
| Not really
| (1)
| YES
| YES |
M_LUERKT
| Misfire
| Yes/No
| (1)
| NO
| NO |
B_LUSTOP
|
| Not really
| (1)
| NO
| NO |
B_ZADRE1
| Gear adaptation made for speed range 1
| Not really
| (1)
| YES*
| (1)
|
B_ZADRE3
| Gear adaptation made for speed range 3
| Not really
| (1)
| (1)
| YES
|
|
---|
(1) - Parameter value for system diagnostics is not used.
* When the battery terminal is removed, these values are reset to zero.
** Checking this parameter is relevant if B_ZADRE1="Yes".
*** In parentheses is the range of typical parameter values for the case when the ASA parameter value is defined.
NOTE. The table shows the parameter values for a positive ambient temperature.
Table of typical parameters, for engine 21214-36
Parameter | Name | Unit or state | Ignition on | Idling (800 rpm) | Idling (3000 rpm) TL
| Load parameter
| msec
| (1)
| 1,4-2,0
| 1,2-1,5
|
UB
| On-board network voltage
| IN
| 11,8-12,5
| 13,2-14,6
| 13,2-14,6
|
TMOT
| coolant temperature
| deg.С
| (1)
| 90-105
| 90-105
|
ZWOUT
| Ignition advance angle
| deg.r.h.
| (1)
| 12±3
| 35-40
|
DKPOT
| Throttle position
| %
| 0
| 0
| 4,5-6,5
|
N40
| Engine speed
| rpm
| (1)
| 850±40
| 3000
|
TE1
| Fuel injection pulse duration
| msec
| (1)
| 4,0-4,4
| 4,0-4,4
|
MOMPOS
| The current position of the idle speed control
| step
| (1)
| 30±10
| 70-80
|
N10
| Idle speed
| rpm
| (1)
| 850±30
| 3000
|
QADP
| Idle Air Flow Adaptation Variable
| kg/hour
| ±3
| ±4*
| ±1 |
ML
| Mass air flow
| kg/hour
| (1)
| 8-10
| 23±2 |
USVK
| Control oxygen sensor signal
| IN
| 0,45
| 0,1-0,9
| 0,1-0,9
|
FR
| Correction coefficient for fuel injection time according to UDC signal
|
| (1)
| 1±0.2
| 1±0.2 |
TRA
| Additive component of self-learning correction
| msec
| ±0.4
| ±0.4*
| (1)
|
FRA
| Multiplicative component of self-learning correction
|
| 1±0.2
| 1±0.2*
| 1±0.2 |
TATE
| Canister Purge Signal Duty Cycle
| %
| (1)
| 30-40
| 50-80
|
USHK
| Diagnostic oxygen sensor signal
| IN
| 0,45
| 0,5-0,7
| 0,6-0,8
|
TANS
| Intake air temperature
| deg.С
| (1)
| +20±10
| +20±10 |
BSMW
| Filtered Rough Road Sensor Signal Value
| g
| (1)
| -0,048
| -0,048
|
FDKHA
| Altitude adaptation factor
|
| (1)
| 0,7-1,03*
| 0,7-1,03
|
RHSV
| Shunt resistance in the heating circuit UDC
| Ohm
| (1)
| 9-13
| 9-13
|
RHSH
| Shunt resistance in the heating circuit of the FDC
| Ohm
| (1)
| 9-13
| 9-13
|
FZABGS
| Emission Misfire Counter
|
| (1)
| 0-15
| 0-15
|
QREG
| Idle air flow parameter
| kg/hour
| (1)
| ±4*
| (1)
|
LUT_AP
| Measured amount of uneven rotation
|
| (1)
| 0-6
| 0-6
|
LUR_AP
| Threshold value of uneven rotation
|
| (1)
| 10,5***
| 6,5(15-40)***
|
ASA
| Adaptation parameter
|
| (1)
| 0,9965-1,0025**
| 0,996-1,0025
|
DTV
| Injector influence factor on mixture adaptation
| msec
| ±0.4
| ±0.4*
| ±0.4 |
ATV
| Integral part of the feedback delay on the second sensor
| sec
| (1)
| 0-0,5*
| 0-0,5
|
TPLRVK
| O2 sensor signal period before catalytic converter
| sec
| (1)
| 0,6-2,5
| 0,6-1,5
|
B_LL
| Sign of engine idling
| Not really
| NO
| YES
| NO |
B_KR
| Knock control active
| Not really
| (1)
| YES
| YES |
B_KS
| Anti-knock protection active
| Not really
| (1)
| NO
| NO |
B_SWE
| Bad Road for Misfire Diagnosis
| Not really
| (1)
| NO
| NO |
B_LR
| Sign of work in the control zone according to the control oxygen sensor
| Not really
| (1)
| YES
| YES |
M_LUERKT
| Misfire
| Yes/No
| (1)
| NO
| NO |
B_LUSTOP
| Misfire detection suspended
| Not really
| (1)
| NO
| NO |
B_ZADRE1
| Gear adaptation made for speed range 1
| Not really
| (1)
| YES*
| (1)
|
B_ZADRE3
| Gear adaptation made for speed range 3
| Not really
| (1)
| (1)
| YES
|
|
---|
(1) - Parameter value for system diagnostics is not used.
* When the battery terminal is removed, these values are reset to zero.
** Checking this parameter is relevant if B_ZADRE1="Yes".
*** In parentheses is the range of typical parameter values for the case when the ASA parameter value is defined.
NOTE. The table shows the parameter values for a positive ambient temperature.
(for engines 2111, 21114, 21124, 21214)
Table of typical parameters, for engine diagnostics 2111
Parameter | Name | Unit or state | Ignition on | Idling (800 min-1) | Idling (3000 min-1) TMOT
| Coolant temperature
| OS
| (1)
| 90-105
| 90-105
|
TANS
| Intake air temperature
| OS
| (1)
| -20...+50
| -20...+50
|
UB
| Voltage in the on-board network
| IN
| 11,8-12,5
| 13,2-14,6
| 13,2-14,6
|
WDKBA
| Throttle position
| %
| 0
| 0
| 2-6
|
NMOT
| Engine speed
| min-1
| (1)
| 800±40
| 3000
|
ML
| Mass air flow
| kg/h
| (1)
| 7-12
| 24-30
|
ZWOUT
| Ignition advance angle
| Op.k.v.
| (1)
| 7-17
| 22-30
|
RL
| Load parameter
| %
| (1)
| 18-24
| 14-18
|
FHO
| Altitude adaptation factor
|
| (1)
| 0,7-1,03*
| 0,7-1,03*
|
TI
| Fuel injection pulse duration
| ms
| (1)
| 3,5-4,3
| 3,2-4,0
|
MOMPOS
|
|
| (1)
| 40±15
| 90±15 |
DMDVAD
|
| %
| (1)
| ±5
| ±5 |
USVK
| Oxygen sensor signal
| IN
| 0,45
| 0,05-0,8
| 0,05-0,8
|
FR
| Correction coefficient for fuel injection time according to UDC signal
|
| (1)
| 1±0.2
| 1±0.2 |
LUMS
|
| rev/sec2
| (1)
| 0...5
| 0...10
|
FZABG
|
|
| (1)
| 0
| 0
|
TATEOUT
| Canister Purge Signal Duty Cycle
| %
| (1)
| 0-15
| 90-100
|
VSKS
| Instant fuel consumption
| l/hour
| (1)
| (1)
| (1)
|
FRA
|
|
| 1±0.2
| 1±0.2*
| 1±0.2* |
RKAT
|
| %
| (1)
| ±5
| ±5 |
B_LL
| Sign of engine idling
| Not really
| NO
| YES
| NO
|
|
---|
(1) - Parameter value for system diagnostics is not used.
NOTE. The table shows the parameter values for a positive ambient temperature.
Table of typical parameters, for diagnosing engines 21114 and 21124
Parameter | Name | Unit or state | Ignition on | Idling (800 min-1) | Idling (3000 min-1) TMOT
| Coolant temperature
| OS
| (1)
| 90-98
| 90-98
|
UB
| Voltage in the on-board network
| IN
| 11,8-12,5
| 13,8-14,1
| 13,8-14,1
|
WDKBA
| Throttle position
| %
| 0
| 0-78 (82)
| 0-78 (82)
|
NMOT
| Engine speed
| min-1
| (1)
| 840±50
| 3000±50 |
ML
| Mass air flow
| kg/h
| (1)
| 7.5-10.5
|
| ZWOUT
| Ignition advance angle
| Op.k.v.
| (1)
| 12±3
| 30-35
|
WKR_X
| The amount of rebound of the ignition timing during detonation
| Op.k.v.
| (1)
| 0
| -2.5...0
|
RL
| Load parameter
| %
| (1)
| 14-23
| 14-23
|
RLP
|
%
| (1)
| 14-23
| 14-23
|
FHO
| Altitude adaptation factor
|
| (1)
| 0,94-1,02
| 0,94-1,02
|
TI
| Fuel injection pulse duration
| ms
| (1)
| 2,7-4,3
| 2,7-4,3
|
NSOL
| Desired engine speed
| min-1
| (1)
| 840
| (1)
|
MOMPOS
| The current position of the idle speed control step
|
| (1)
| 24±10
| 45-75
|
DMDVAD
| Idle adjustment adaptation parameter
| %
| (1)
| ±2
| ±2 |
USVK
| Control oxygen sensor signal
| IN
| 0,45
| 0,06-0,8
| 0,06-0,8
|
FR
| Correction coefficient for fuel injection time according to UDC signal
|
| (1)
| 1±0.25
| 1±0.25 |
LUMS
| Irregular rotation of the crankshaft
| 1/s2
| (1)
| ±5
| ±5 |
FZABG
| Toxicity Misfire Counter
|
| (1)
| 0
| 0
|
FZAKTS
| Counter of misfires affecting the catalytic converter
|
| (1)
| 0
| 0
|
DMLLRI
| Desired torque change to maintain cold. stroke (integral part)
| %
| (1)
| ±3
| 0
|
DMLLR
| Desired torque change to maintain cold. stroke (prop. part)
| %
| (1)
| ±3
| 0
|
| self-learning
| (1)
| 1±0.12
| 1±0.12 |
RKAT
| Additive component of self-learning correction
| %
| (1)
| ±3.5
| ±3.5 |
USHK
| Diagnostic oxygen sensor signal
| IN
| 0,45
| 0,2-0,6
| 0,2-0,6
|
TPSVKMR
| Signal period of the control oxygen sensor
| With
| (1)
|
| ATV
| Integral part of the DDC feedback delay
| ms
| (1)
| ±0.5
| ±0.5 |
AHKAT
| Converter aging factor
|
| (1)
|
| B_LL
| Sign of engine idling
| Not really
| NO
| YES
| NO |
B_LR
| Sign of work in the adjustment zone by the UDC signal
| Not really
| (1)
| YES
| YES |
B_SBBVK
| Sign of readiness UDC
| Not really
| (1)
| YES
| YES
|
|
---|
(1) - Parameter value for system diagnostics is not used.
NOTE. The table shows the parameter values for a positive ambient temperature.
Table of typical parameters, for engine diagnostics 21214-11
Parameter | Name | Unit or state | Ignition on | Idling (800 min-1) | Idling (3000 min-1) TMOT
| Coolant temperature
| OS
| (1)
| 85-105
| 85-105
|
TANS
| Intake air temperature
| OS
| (1)
| -20...+60
| -20...+60
|
UB
| Voltage in the on-board network
| IN
| 11,8-12,5
| 13,2-14,6
| 13,2-14,6
|
WDKBA
| Throttle position
| %
| 0
| 0
| 3-5
|
NMOT
| Engine speed
| min-1
| (1)
| 800±40
| 3000
|
ML
| Mass air flow
| kg/h
| (1)
| 16-20
| 30-40
|
ZWOUT
| Ignition advance angle
| Op.k.v.
| (1)
| -5±2
| 35±5 |
RL
| Load parameter
| %
| (1)
| 30-40
| 15-25
|
FHO
| Altitude adaptation factor
|
| (1)
| 0,6-1,2
| 0,6-1,2
|
TI
| Fuel injection pulse duration
| ms
| (1)
| 7-8
| 3,5-4,5
|
MOMPOS
| The current position of the idle speed control step
|
| (1)
| 50±10
| 55±5 |
DMDVAD
| Idle adjustment adaptation parameter
| %
| (1)
| 1±0.01
| 1±0.01 |
USVK
| Oxygen sensor signal
| IN
| 0,45
| 0,1-0,9
| 0,1-0,9
|
FR
| Fuel injection time correction factor by signal
|
| (1)
| 1±0.2
| 1±0.2 |
LUMS
| Irregular rotation of the crankshaft
| rev/sec2
| (1)
| 2...6
| 10...13
|
FZABG
| Toxicity Misfire Counter
|
| (1)
| 0...15
| 0...15
|
TATEOUT
| Canister Purge Signal Duty Cycle
| %
| (1)
| 0-40
| 90-100
|
VSKS
| Instant fuel consumption
| l/hour
| (1)
| 1.7±0.2
| 3.0±0.2 |
FRA
| Multiplicative component of self-learning correction
|
| 1±0.2
| 1±0.2*
| 1±0.2* |
RKAT
| Additive component of self-learning correction
| %
| (1)
| ±2
| ±2 |
B_LL
| Sign of engine idling
| Not really
| NO
| YES
| NO
|
|
---|
(1) - Parameter value for system diagnostics is not used.
NOTE. The table shows the parameter values for a positive ambient temperature.
Tightening torques for threaded connections | (N.m) Nuts of fastening of a throttle branch pipe
| 14,3-23,1
|
Nuts for fastening the fuel pump module
| 1-1,5
|
Screws of fastening of a regulator of idling
| 3-4
|
Screws of fastening of the gauge of the mass expense of air
| 3-5
|
Vehicle speed sensor
| 1,8-4,2
|
Nuts of fastening of fuel lines to the fuel filter
| 20-34
|
Injector rail fixing screws
| 9-13
|
Screws of fastening of a regulator of pressure of fuel
| 8-11
|
Nut of fastening of the inlet fuel line to the ramp
| 10-20
|
Nut of fastening of a drain fuel line to a regulator of pressure
| 10-20
|
coolant temperature sensor
| 9,3-15
|
oxygen sensor
| 25-45
|
Screw of fastening of the sensor of position of a cranked shaft
| 8-12
|
Bolt,knock sensor mounting nut
| 10,4-24,2
|
Nut of fastening of the module of ignition
| 3,3-7,8
|
Spark plugs (engine VAZ-21114,21214,2107)
| 30,7-39
|
Spark plugs (engine VAZ-2112,21124)
| 20-30
|
Ignition coil mounting bolts (VAZ-21114 engine)
| 14,7-24,5
|
Ignition coil mounting bolt (VAZ-21124 engine)
| 3,5-8,2
|
|
---|
For many novice diagnosticians and ordinary motorists who are interested in the topic of diagnostics, information about typical engine parameters will be useful. Since the most common and easy-to-repair engines of VAZ cars, we will start with them. What is the first thing you need to pay attention to when analyzing the parameters of the engine?
1. Engine stopped.
1.1 Coolant and air temperature sensors (if any). The temperature is checked to ensure that the readings correspond to the actual temperature of the engine and air. Checking is best done with a non-contact thermometer. By the way, one of the most reliable VAZ engines in the injection system is temperature sensors.
1.2 Throttle position (except systems with electronic gas pedal). The gas pedal is released - 0%, the accelerator is pressed - corresponding to the opening of the throttle. They played with the gas pedal, released it - it should also remain 0%, while the ADC with a dpdz of about 0.5V. If the opening angle jumps from 0 to 1-2%, then as a rule this is a sign of a worn out dpdz. Rarely, there is a malfunction in the wiring of the sensor. With the gas pedal fully depressed, some units will show 100% opening (such as Jan 5.1, Jan 7.2) while others like the Bosch MP 7.0 will only show 75%. This is fine.
1.3 ADC DMRV channel in rest mode: 0.996 / 1.016 V - normal, up to 1.035 V is still acceptable, everything above is a reason to think about replacing the mass air flow sensor. Injection systems equipped with oxygen sensor feedback are able to correct incorrect MAF readings to some extent, but there is a limit to everything, so you should not delay replacing this sensor if it is already worn out.
2. The engine is idling.
2.1 Idle speed. Usually it is 800 - 850 rpm with a fully warmed up engine. The value of the number of revolutions at idle depends on the temperature of the engine and is set in the engine management program.
2.2 Air mass flow. For 8 valve engines, the typical value is 8-10 kg / h, for 16 valve engines - 7 - 9.5 kg / h with a fully warmed-up engine at idle. For the M73 ECU, these values \u200b\u200bare somewhat larger due to the design feature.
2.3 Length of injection time. For phased injection, a typical value is 3.3 - 4.1 ms. For simultaneous - 2.1 - 2.4 ms. Actually, the injection time itself is not so important as its correction.
2.4 Injection time correction factor. Depends on many factors. This is a topic for a separate article, here it is only worth mentioning that the closer to 1,000 the better. More than 1,000 means the mixture is further enriched, less than 1,000 means it is leaner.
2.5 Multiplicative and additive component of self-learning correction. A typical multiplicative value is 1 +/-0.2. The additive is measured as a percentage and should be no more than +/- 5% on a working system.
2.6 If there is a sign of engine operation in the adjustment zone on the signal of the oxygen sensor, the latter should draw a beautiful sinusoid from 0.1 to 0.8 V.
2.7 Cyclic filling and load factor. For "January" typical cycle air consumption: 8 valve engine 90 - 100 mg / stroke, 16 valve 75 - 90 mg / stroke. For Bosch 7.9.7 control units, a typical load factor is 18 - 24%.
Now let's take a closer look at how these parameters behave in practice. Since I use the SMS Diagnostics program for diagnostics (hi to Alexey Mikheenkov and Sergey Sapelin!), then all the screenshots will be from there. The parameters are taken from practically serviceable cars, except for separately specified cases.
All images are clickable.
VAZ 2110 8-valve engine, control unit January 5.1
Here, the CO correction factor has been slightly corrected due to the slight wear of the DMRV.
VAZ 2107, control unit January 5.1.3
VAZ 2115 8-valve engine, control unit January 7.2
Engine VAZ 21124, control unit January 7.2
VAZ 2114 8-valve engine, Bosch 7.9.7 control unit
Priora, engine VAZ 21126 1.6 l., control unit Bosch 7.9.7
Zhiguli VAZ 2107, M73 control unit
VAZ 21124 engine, M73 control unit
VAZ 2114 8-valve engine, M73 control unit
Kalina, 8-valve engine, M74 control unit
Niva engine VAZ-21214, control unit Bosch ME17.9.7
And in conclusion, let me remind you that the above screenshots were taken from real cars, but unfortunately the recorded parameters are not ideal. Although I tried to fix the parameters only from serviceable cars.
January 4; January 5.1, VS 5.1, Bosch 1.5.4 ; Bosch MP7.0 January 7.2, Bosch 7.9.7
table of tightening torques for threaded connections
January 4
Parameter | Name | Unit or state | Ignition on | Idling |
COEFFF | Fuel correction factor | 0,9-1 | 1-1,1 |
|
EFREQ | Frequency mismatch for idling | rpm | ±30 |
|
FAZ | Fuel injection phase | deg.r.h. | 162 | 312 |
FREQ | Speed | rpm | 0 | 840-880(800±50)** |
FREQX | Idle speed | rpm | 0 | 840-880(800±50)** |
FSM | Idle control position | step | 120 | 25-35 |
INJ | Injection pulse duration | ms | 0 | 2,0-2,8(1,0-1,4)** |
INPLAM* | Sign of oxygen sensor operation | Yes/No | RICH | RICH |
JADET | Voltage in the detonation signal processing channel | mV | 0 | 0 |
JAIR | Air flow | kg/hour | 0 | 7-8 |
JALAM* | Input-referred filtered oxygen sensor signal | mV | 1230,5 | 1230,5 |
JARCO | Voltage from CO potentiometer | mV | by toxicity | by toxicity |
JATAIR* | Voltage from air temperature sensor | mV | - | - |
JATHR | Throttle position sensor voltage | mV | 400-600 | 400-600 |
JATWAT | Voltage from coolant temperature sensor | mV | 1600-1900 | 1600-1900 |
JAUACC | Voltage in the car's on-board network | IN | 12,0-13,0 | 13,0-14,0 |
JDKGTC | Dynamic correction factor for cyclic filling with fuel | 0,118 | 0,118 |
|
JGBC | Filtered cyclic filling with air | mg/tact | 0 | 60-70 |
JGBCD | Unfiltered cyclic filling with air according to the DMRV signal | mg/tact | 0 | 65-80 |
JGBCG | Expected cyclic air filling with incorrect readings of the mass air flow sensor | mg/tact | 10922 | 10922 |
JGBCIN | Cyclic filling with air after dynamic correction | mg/tact | 0 | 65-75 |
JGTC | Cyclic fueling | mg/tact | 0 | 3,9-5 |
JGTCA | Asynchronous cyclic fuel supply | mg | 0 | 0 |
JKGBC* | Barometric correction factor | 0 | 1-1,2 |
|
JQT | Fuel consumption | mg/tact | 0 | 0,5-0,6 |
JSPEED | Current vehicle speed | km/h | 0 | 0 |
JURFXX | Tabular frequency setting at idle. Resolution 10 rpm | rpm | 850(800)** | 850(800)** |
NUACC | Quantized voltage of the onboard network | IN | 11,5-12,8 | 12,5-14,6 |
RCO | Fuel supply correction factor from CO-potentiometer | 0,1-2 | 0,1-2 |
|
RXX | Sign of idling | Yes/No | NO | EAT |
SSM | Setting the idle speed controller | step | 120 | 25-35 |
TAIR* | Air temperature in the intake manifold | deg.С | - | - |
THR | Current Throttle Position | % | 0 | 0 |
TWAT |
| deg.С | 95-105 | 95-105 |
UGB | Setting the air flow for the idle air control | kg/hour | 0 | 9,8 |
UOZ | Ignition advance angle | deg.r.h. | 10 | 13-17 |
UOZOC | Ignition timing for octane corrector | deg.r.h. | 0 | 0 |
UOZXX | Ignition timing for idling | deg.r.h. | 0 | 16 |
VALF | The composition of the mixture that determines the fuel supply in the engine | 0,9 | 1-1,1 |
* These parameters are not used for diagnostics of this engine management system.
** For multiport sequential fuel injection system.
January 5.1, VS 5.1, Bosch 1.5.4
(for engines 2111, 2112, 21045)
Table of typical parameters, for the VAZ-2111 engine (1.5 l 8 cells)
Parameter | Name | Unit or state | Ignition on | Idling |
IDLING |
| Not really | No | Yes |
ZONE REGULATOR O2 |
| Not really | No | Not really |
O2 LEARNING |
| Not really | No | Not really |
PAST O2 |
| poor/rich | Poor | poor/rich |
CURRENT O2 |
| poor/rich | Bedn | poor/rich |
T.COOL.L. | Coolant temperature | deg.С | (1) | 94-104 |
AIR/FUEL | Air/fuel ratio | (1) | 14,0-15,0 |
|
POL.D.Z. |
| % | 0 | 0 |
OB.DV |
| rpm | 0 | 760-840 |
OB.DV.XX |
| rpm | 0 | 760-840 |
DESIRED POL.I.X. |
| step | 120 | 30-50 |
CURRENT P.I.X. |
| step | 120 | 30-50 |
COR.VR.VP. |
| 1 | 0,76-1,24 |
|
W.O.Z. | Ignition advance angle | deg.r.h. | 0 | 10-20 |
SK.AVT. | Current vehicle speed | km/h | 0 | 0 |
BOARD NAP. | On-board network voltage | IN | 12,8-14,6 | 12,8-14,6 |
J.OB.XX |
| rpm | 0 | 800(3) |
NAP.D.O2 |
| IN | (2) | 0,05-0,9 |
SENS O2 READY |
| Not really | No | Yes |
RATE.O.D.O2 |
| Not really | NO | YES |
VR.VLOOKUP |
| ms | 0 | 2,0-3,0 |
MA.R.V. | Mass air flow | kg/hour | 0 | 7,5-9,5 |
CEC.RV. | Cycle air flow | mg/tact | 0 | 82-87 |
CH.RAS.T. | Hourly fuel consumption | l/hour | 0 | 0,7-1,0 |
Table note:
Table of typical parameters, for the VAZ-2112 engine (1.5 l 16 cells)
Parameter | Name | Unit or state | Ignition on | Idling |
IDLING | Sign of engine idling | Not really | No | Yes |
O2 LEARNING | Sign of learning fuel supply by oxygen sensor signal | Not really | No | Not really |
PAST O2 | The state of the oxygen sensor signal in the last calculation cycle | poor/rich | Poor | poor/rich |
CURRENT O2 | The current state of the oxygen sensor signal | poor/rich | Bedn | poor/rich |
T.COOL.L. | Coolant temperature | deg.С | 94-101 | 94-101 |
AIR/FUEL | Air/fuel ratio | (1) | 14,0-15,0 |
|
POL.D.Z. | Throttle position | % | 0 | 0 |
OB.DV | Motor rotation speed (resolution 40 rpm) | rpm | 0 | 760-840 |
OB.DV.XX | Engine speed at idle (resolution 10 rpm) | rpm | 0 | 760-840 |
DESIRED POL.I.X. | Desired idle speed control position | step | 120 | 30-50 |
CURRENT P.I.X. | The current position of the idle speed control | step | 120 | 30-50 |
COR.VR.VP. | Injection pulse width correction factor based on DC signal | 1 | 0,76-1,24 |
|
W.O.Z. | Ignition advance angle | deg.r.h. | 0 | 10-15 |
SK.AVT. | Current vehicle speed | km/h | 0 | 0 |
BOARD NAP. | On-board network voltage | IN | 12,8-14,6 | 12,8-14,6 |
J.OB.XX | Desired idle speed | rpm | 0 | 800 |
NAP.D.O2 | Oxygen sensor signal voltage | IN | (2) | 0,05-0,9 |
SENS O2 READY | Oxygen sensor readiness for operation | Not really | No | Yes |
RATE.O.D.O2 | The presence of a controller command to turn on the DC heater | Not really | NO | YES |
VR.VLOOKUP | Fuel injection pulse duration | ms | 0 | 2,5-4,5 |
MA.R.V. | Mass air flow | kg/hour | 0 | 7,5-9,5 |
CEC.RV. | Cycle air flow | mg/tact | 0 | 82-87 |
CH.RAS.T. | Hourly fuel consumption | l/hour | 0 | 0,7-1,0 |
Table note:
(1) - Parameter value is not used for ECM diagnostics.
(2) - When the oxygen sensor is not ready for operation (not warmed up), the sensor output voltage is 0.45V. After the sensor warms up, the signal voltage with the engine off will be less than 0.1V.
Table of typical parameters, for the VAZ-2104 engine (1.45 l 8 cells)
Parameter | Name | Unit or state | Ignition on | Idling |
IDLING | Sign of engine idling | Not really | No | Yes |
ZONE REGULATOR O2 | Sign of work in the adjustment zone by the oxygen sensor | Not really | No | Not really |
O2 LEARNING | Sign of learning fuel supply by oxygen sensor signal | Not really | No | Not really |
PAST O2 | The state of the oxygen sensor signal in the last calculation cycle | poor/rich | poor/rich | poor/rich |
CURRENT O2 | The current state of the oxygen sensor signal | poor/rich | poor/rich | poor/rich |
T.COOL.L. | Coolant temperature | deg.С | (1) | 93-101 |
AIR/FUEL | Air/fuel ratio | (1) | 14,0-15,0 |
|
POL.D.Z. | Throttle position | % | 0 | 0 |
OB.DV | Motor rotation speed (resolution 40 rpm) | rpm | 0 | 800-880 |
OB.DV.XX | Engine speed at idle (resolution 10 rpm) | rpm | 0 | 800-880 |
DESIRED POL.I.X. | Desired idle speed control position | step | 35 | 22-32 |
CURRENT P.I.X. | The current position of the idle speed control | step | 35 | 22-32 |
COR.VR.VP. | Injection pulse width correction factor based on DC signal | 1 | 0,8-1,2 |
|
W.O.Z. | Ignition advance angle | deg.r.h. | 0 | 10-20 |
SK.AVT. | Current vehicle speed | km/h | 0 | 0 |
BOARD NAP. | On-board network voltage | IN | 12,0-14,0 | 12,8-14,6 |
J.OB.XX | Desired idle speed | rpm | 0 | 840(3) |
NAP.D.O2 | Oxygen sensor signal voltage | IN | (2) | 0,05-0,9 |
SENS O2 READY | Oxygen sensor readiness for operation | Not really | No | Yes |
RATE.O.D.O2 | The presence of a controller command to turn on the DC heater | Not really | NO | YES |
VR.VLOOKUP | Fuel injection pulse duration | ms | 0 | 1,8-2,3 |
MA.R.V. | Mass air flow | kg/hour | 0 | 7,5-9,5 |
CEC.RV. | Cycle air flow | mg/tact | 0 | 75-90 |
CH.RAS.T. | Hourly fuel consumption | l/hour | 0 | 0,5-0,8 |
Table note:
(1) - Parameter value is not used for ECM diagnostics.
(2) - When the oxygen sensor is not ready for operation (not warmed up), the sensor output voltage is 0.45V. After the sensor warms up, the signal voltage with the engine off will be less than 0.1V.
(3) - For controllers with later software versions, the desired idle speed is 850 rpm. Accordingly, the tabular values of the OB.DV parameters also change. and OB.DV.XX.
Bosch MP 7.0
(for engines 2111, 2112, 21214)
Table of typical parameters, for engine 2111
Parameter | Name | Unit or state | Ignition on | Idling (800 rpm) | Idling (3000 rpm) |
TL | Load parameter | msec | (1) | 1,4-2,1 | 1,2-1,6 |
UB | On-board network voltage | IN | 11,8-12,5 | 13,2-14,6 | 13,2-14,6 |
TMOT | coolant temperature | deg.С | (1) | 90-105 | 90-105 |
ZWOUT | Ignition advance angle | deg.r.h. | (1) | 12±3 | 35-40 |
DKPOT | Throttle position | % | 0 | 0 | 4,5-6,5 |
N40 | Engine speed | rpm | (1) | 800±40 | 3000 |
TE1 | Fuel injection pulse duration | msec | (1) | 2,5-3,8 | 2,3-2,95 |
MOMPOS | The current position of the idle speed control | step | (1) | 40±15 | 70-85 |
N10 | Idle speed | rpm | (1) | 800±30 | 3000 |
QADP | Idle Air Flow Adaptation Variable | kg/hour | ±3 | ±4* | ±1 |
ML | Mass air flow | kg/hour | (1) | 7-12 | 25±2 |
USVK | Control oxygen sensor signal | IN | 0,45 | 0,1-0,9 | 0,1-0,9 |
FR | Correction coefficient for fuel injection time according to UDC signal | (1) | 1±0.2 | 1±0.2 |
|
TRA | Additive component of self-learning correction | msec | ±0.4 | ±0.4* | (1) |
FRA | Multiplicative component of self-learning correction | 1±0.2 | 1±0.2* | 1±0.2 |
|
TATE | Canister Purge Signal Duty Cycle | % | (1) | 0-15 | 30-80 |
USHK | Diagnostic oxygen sensor signal | IN | 0,45 | 0,5-0,7 | 0,6-0,8 |
TANS | Intake air temperature | deg.С | (1) | -20...+60 | -20...+60 |
BSMW | Filtered Rough Road Sensor Signal Value | g | (1) | -0,048 | -0,048 |
FDKHA | Altitude adaptation factor | (1) | 0,7-1,03* | 0,7-1,03 |
|
RHSV | Shunt resistance in the heating circuit UDC | Ohm | (1) | 9-13 | 9-13 |
RHSH | Shunt resistance in the heating circuit of the FDC | Ohm | (1) | 9-13 | 9-13 |
FZABGS | Emission Misfire Counter | (1) | 0-15 | 0-15 |
|
QREG | Idle air flow parameter | kg/hour | (1) | ±4* | (1) |
LUT_AP | Measured amount of uneven rotation | (1) | 0-6 | 0-6 |
|
LUR_AP | Threshold value of uneven rotation | (1) | 6-6,5(6-7,5)*** | 6,5(15-40)*** |
|
ASA | Adaptation parameter | (1) | 0,9965-1,0025** | 0,996-1,0025 |
|
DTV | Injector influence factor on mixture adaptation | msec | ±0.4 | ±0.4* | ±0.4 |
ATV | Integral part of the feedback delay on the second sensor | sec | (1) | 0-0,5* | 0-0,5 |
TPLRVK | O2 sensor signal period before catalytic converter | sec | (1) | 0,6-2,5 | 0,6-1,5 |
B_LL | Sign of engine idling | Not really | NO | YES | NO |
B_KR | Knock control active | Not really | (1) | YES | YES |
B_KS | Anti-knock protection active | Not really | (1) | NO | NO |
B_SWE | Bad Road for Misfire Diagnosis | Not really | (1) | NO | NO |
B_LR | Sign of work in the control zone according to the control oxygen sensor | Not really | (1) | YES | YES |
M_LUERKT | Misfire | Yes/No | (1) | NO | NO |
B_ZADRE1 | Gear adaptation made for speed range 1 … Continuation " |
List of variables, engine management systems VAZ-2112 (1.5l 16 cells)
controller M1.5.4N "Bosch"
№ | Parameter | Name | Unit or state | Ignition on | Idling |
1 | ENGINE OFF | Sign of engine shutdown | Not really | Yes | No |
2 | IDLING | Sign of engine idling | Not really | No | Yes |
3 | OH GOD. ON POWER | Sign of power enrichment | Not really | No | No |
4 | FUEL BLOCK | Sign of blockage of fuel supply | Not really | No | No |
5 | ZONE REG. About 2 | Sign of work in the adjustment zone by the oxygen sensor | Not really | No | Not really |
6 | ZONE DETOON | Sign of engine operation in the detonation zone | Not really | No | No |
7 | PURGE ADS | Sign of operation of the adsorber purge valve | Not really | No | Not really |
8 | TRAINING O 2 | Sign of learning fuel supply by oxygen sensor signal | Not really | No | Not really |
9 | PAR.XX MEASUREMENT | Sign of measuring idle speed parameters | Not really | No | No |
10 | PAST XX | Sign of engine idling in the last cycle of calculations | Not really | No | Yes |
11 | BL. EXIT FROM XX | Sign of blocking the exit from the idle mode | Not really | Yes | No |
12 | PR.ZONE CHILD | Sign of engine operation in the detonation zone in the last calculation cycle | Not really | No | No |
13 | PR.SELL.ADS | Sign of adsorber operation in the last cycle of calculations | Not really | No | Not really |
14 | DET.DETONATS | Sign of detonation detection | Not really | No | No |
15 | PAST O 2 | The state of the oxygen sensor signal in the last calculation cycle | poor/rich | Bedn | poor/rich |
16 | CURRENT O 2 | The current state of the oxygen sensor signal | poor/rich | Bedn | poor/rich |
17 | T.COOL.L | Coolant temperature | °С | 94-101 | 94-101 |
18 | pol.d.z | Throttle position | % | 0 | 0 |
19 | OB.DV | Engine rotation speed (resolution 40) | rpm | 0 | 760-840 |
20 | OB.DV.XX | Engine rotation speed x. X. | about/ min | 0 | 760-840 |
21 | DESIRED POL.I.X. | Desired idle speed control position | step | 120 | 30-50 |
22 | CURRENT P.I.X. | The current position of the idle speed control | step | 120 | 30-50 |
23 | COR.VR.VP | Injection pulse width correction factor based on DC signal | units | 1 | 0,76-1,24 |
24 | U.0.3 | Ignition advance angle | °P.a.c. | 0 | 10-15 |
25 | SK.AVT | Current vehicle speed | km/h | 0 | 0 |
26 | BOARD.NAP | Voltage in the on-board network | IN | 12,8-14,6 | 12,8-14,6 |
27 | J.OB.XX | Desired idle speed | rpm | 0 | 800 |
28 | VR.VLOOKUP | Fuel injection pulse duration | ms | 0 | 2,5-4,5 |
29 | MARV | Mass air flow | kg/hour | 0 | 7,5-9,5 |
30 | CEC.RV | Cycle air flow | mg/tact | 0 | 82-87 |
31 | Ch. RAS. T | Hourly fuel consumption | l/hour | 0 | 0,7-1,0 |
32 | PRT | Travel fuel consumption | l/100km | 0 | 0,3 |
33 | CURRENT ERROR | Sign of current errors | Not really | No | No |
List of variables, engine management systems VAZ-21102, 2111, 21083, 21093, 21099 (1.5l 8 cells) controller MP7.0H "Bosch"
№ | Parameter | Name | Unit or state | Ignition on | Idling |
1 | UB | Voltage in the on-board network | IN | 12,8-14,6 | 13,8-14,6 |
2 | TMOT | Coolant temperature | With | - * | 94-105 |
3 | DKPOT | Throttle position | % | 0 | 0 |
4 | N40 | Engine speed (resolution 40 rpm) | rpm | 0 | 800±40 |
5 | TE1 | Fuel injection pulse duration | ms | -* | 1,4-2,2 |
6 | MAF | Mass air flow sensor signal | V | 1 | 1,15-1,55 |
7 | TL | Load parameter | ms | 0 | 1,35-2,2 |
8 | ZWOUT | Ignition advance angle | p.c.v. | 0 | 8-15 |
9 | DZW_Z | Reducing the ignition timing when knock is detected | p.c.v. | 0 | 0 |
10 | USVK | Oxygen sensor signal | mV | 450 | 50-900 |
11 | FR | Fuel injection time correction factor based on oxygen sensor signal | units | 1 | 1±0.2 |
12 | TRA | Additive component of self-learning correction | ms | ±0.4 | ±0.4 |
13 | FRA | Multiplicative component of self-learning correction | units | 1±0.2 | 1±0.2 |
14 | TATE | Canister Purge Signal Duty Cycle | % | 0 | 15-45 |
15 | N10 | The frequency of rotation of the crankshaft of the engine at x. move (resolution 10) | rpm | 0 | 800±40 |
16 | NSOL | Desired idle speed | rpm | 0 | 800 |
17 | ML | Mass air flow | kg/hour | 10** | 6,5-11,5 |
18 | QSOL | Desired idle air flow | kg/hour | - * | 7,5-10 |
19 | IV | Current correction of the calculated idle air flow | kg/hour | ±1 | ±2 |
20 | MOMPOS | The current position of the idle speed control | step | 85 | 20-55 |
21 | QADP | Idle Air Flow Adaptation Variable | kg/hour | ±5 | ±5 |
22 | VFZ | Current vehicle speed | km/h | 0 | 0 |
23 | B_VL | Sign of power enrichment | Not really | NO | NO |
24 | B_LL | Sign of engine idling | Not really | NO | YES |
25 | B_EKR | Sign of turning on the electric fuel pump | Not really | NO | YES |
26 | S_AC | Request to turn on the air conditioner | Not really | NO | NO |
27 | B_LF | Sign of turning on the electric fan | Not really | NO | NOT REALLY |
28 | S_MILR | Sign of turning on the control lamp | Not really | NOT REALLY | NOT REALLY |
29 | B_LR | Sign of work V oxygen sensor control zone | Not really | NO | NOT REALLY |
* The parameter value is difficult to predict and is not used for diagnosis. ** The parameter has a real meaning only when the car is moving.
Typical values of the main parameters of control systems for VAZ vehicles with a 2111 engine.
Parameter | Unit ism |
Controller type and typical values |
||||
January4 | January 4.1 | M1.5.4 | M1.5.4N | MP7.0 | ||
UACC | IN | 13 - 14,6 | 13 - 14,6 | 13 - 14,6 | 13 - 14,6 | 13 - 14,6 |
TWAT | deg. WITH | 90 - 104 | 90 - 104 | 90 - 104 | 90 - 104 | 90 - 104 |
THR | % | 0 | 0 | 0 | 0 | 0 |
FREQ | rpm | 840 - 880 | 750 - 850 | 840 - 880 | 760 - 840 | 760 - 840 |
INJ | msec | 2 - 2,8 | 1 - 1,4 | 1,9 - 2,3 | 2 - 3 | 1,4 - 2,2 |
RCOD | 0,1 - 2 | 0,1 - 2 | +/- 0,24 | |||
AIR | kg/hour | 7 - 8 | 7 - 8 | 9,4 - 9,9 | 7,5 - 9,5 | 6,5 - 11,5 |
UOZ | gr. P.K.V | 13 - 17 | 13 - 17 | 13 - 20 | 10 - 20 | 8 - 15 |
FSM | step | 25 - 35 | 25 - 35 | 32 - 50 | 30 - 50 | 20 - 55 |
QT | l/hour | 0,5 - 0,6 | 0,5 - 0,6 | 0,6 - 0,9 | 0,7 - 1 | |
ALAM1 | IN | 0,05 - 0,9 | 0,05 - 0,9 |