Page 308 of 348
17B-308V7 MR-413-X44-17B000$172.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
SIM 32 injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
PR190IDLE SPEED SETPOINT
PARAMETER
DEFINITIONThis parameter indicates the idle speed setpoint in rpm.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
Conformity check: Engine stopped and ignition on, or engine running, and engine coolant temperature
> 80˚C.
The idle speed regulation setting depends on coolant and oil temperature, the position of the gearbox selector, and
what electrical consumers are running.
The value should be:
PR190 ≈ 1000 rpm.
If there is a fault, apply interpretation of ET054 Idle speed regulation.
SIM32_V44_PR190 / SIM32_V4C_PR190 / SIM32_V50_PR190 / SIM32_V54_PR190
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Page 309 of 348
17B-309V7 MR-413-X44-17B000$172.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
SIM 32 injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
PR312MANIFOLD PRESSURE
PARAMETER
DEFINITIONThis parameter indicates the manifold pressure in mbar.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
Conformity check: Engine stopped and ignition on, or engine running, and engine coolant temperature
> 80˚C.
Manifold pressure = Atmospheric pressure
The value should be:
PR312 ≈ 1000 mbar.
In the event of a fault apply the interpretation for DF089 Inlet pressure sensor circuit.
SIM32_V44_PR312 / SIM32_V4C_PR312 / SIM32_V50_PR312 / SIM32_V54_PR312
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Page 310 of 348
17B-310V7 MR-413-X44-17B000$172.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
SIM 32 injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
PR424PROGRAMMING THE NO-LOAD POSITION VALUE
PARAMETER
DEFINITIONThis parameter indicates the accelerator pedal no load position value as a %.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
Conformity check: Engine stopped and ignition on, or engine running, and engine coolant temperature
> 80˚C.
The value should be:
PR424 ≈ 15%.
SIM32_V44_PR424 / SIM32_V4C_PR424 / SIM32_V50_PR424 / SIM32_V54_PR424
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Page 311 of 348
17B-311V7 MR-413-X44-17B000$172.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
SIM 32 injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
PR427AVERAGE PINKING SIGNAL
PARAMETER
DEFINITIONThis parameter indicates the average pinking signal.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
Conformity check: Engine stopped and ignition on, or engine running, and engine coolant temperature
> 80˚C.
This parameter varies according to the pinking status in the combustion chamber.
In the event of a fault, apply interpretation of DF330 Pinking sensor circuit.
SIM32_V44_PR427 / SIM32_V4C_PR427 / SIM32_V50_PR427 / SIM32_V54_PR427
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Page 312 of 348
17B-312V7 MR-413-X44-17B000$172.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
SIM 32 injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
PR429MEASURED THROTTLE POSITION
PARAMETER
DEFINITIONThis parameter indicates the throttle valve position measured as a %.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
Conformity check: Engine stopped and ignition on, or engine running, and engine coolant temperature
> 80˚C.
The value should be:
PR429 ≈15%
In the event of a fault, apply the interpretation of DF095 Throttle potentiometer circuit gang 1 and DF096
Throttle potentiometer circuit gang 2.
SIM32_V44_PR429 / SIM32_V4C_PR429 / SIM32_V50_PR429 / SIM32_V54_PR429
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Page 313 of 348
17B-313V7 MR-413-X44-17B000$172.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
SIM 32 injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
PR448IGNITION ADVANCE
PARAMETER
DEFINITIONThis parameter indicates the ignition advance in degrees of crankshaft rotation ˚V.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
Conformity check: Engine stopped and ignition on, or engine running, and engine coolant temperature
> 80˚C.
The value should be:
–PR448 ≈ 0˚V, ignition on,
–PR448 ≈ 4˚V, at idle speed.
In the event of a fault apply the interpretation for DF154 Flywheel signal sensor circuit.
SIM32_V44_PR448 / SIM32_V4C_PR448 / SIM32_V50_PR448 / SIM32_V54_PR448
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Page 314 of 348
17B-314V7 MR-413-X44-17B000$172.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
SIM 32 injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
PR538MEASURED THROTTLE VOLTAGE, GANG 2
PARAMETER
DEFINITIONThis parameter indicates the throttle valve gang 2 voltage measured in volts.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
Conformity check: Engine stopped and ignition on, or engine running, and engine coolant temperature
> 80˚C.
The value should be:
PR538 ≈ 0.70 V.
In the event of a fault, apply the interpretation of DF095 Throttle potentiometer circuit gang 1 and DF096
Throttle potentiometer circuit gang 2.
SIM32_V44_PR538 / SIM32_V4C_PR538 / SIM32_V50_PR538 / SIM32_V54_PR538
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Page 315 of 348
17B-315V7 MR-413-X44-17B000$172.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
SIM 32 injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
PR539THROTTLE VALVE GANG 1 MEASURE VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the throttle valve voltage, gang 1 measured in volts.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
Conformity check: Engine stopped and ignition on, or engine running, and engine coolant temperature
> 80˚C.
The value should be:
PR539 ≈ 0.70 V.
In the event of a fault, apply the interpretation of DF095 Throttle potentiometer circuit gang 1 and DF096
Throttle potentiometer circuit gang 2.
SIM32_V44_PR539 / SIM32_V4C_PR539 / SIM32_V50_PR539 / SIM32_V54_PR539
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.