Page 201 of 279
17B-201V2 MR-376-X76-17B050$130.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test, then check with the diagnostic tool.
PR215SENSOR SUPPLY VOLTAGE NO. 1
PA R A M E T E R
DEFINITIONThis parameter indicates the supply voltage no. 1 of the sensors in Volts.
Conformity check: Engine stopped and the ignition on, or the engine running and the engine coolant temperature
> 80°C without electrical consumers.
The voltage of PR215 is approximately 5000 mV.
In the event of a fault, run fault finding on the charging circuit and consult the interpretation of DF011 Sensor
supply voltage no. 1.
V42_V04_PR215/V42_V05_PR215/V42_V06_PR215/V42_V14_PR215/V42_V16_PR215/V42_V18_PR215
Page 202 of 279
17B-202V2 MR-376-X76-17B050$130.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test, then check with the diagnostic tool.
PR216SENSOR SUPPLY VOLTAGE NO. 2
PA R A M E T E R
DEFINITIONThis parameter indicates the supply voltage no. 2 of the sensors in Volts.
Conformity check: Engine stopped and the ignition on, or the engine running and the engine coolant temperature
> 80°C without electrical consumers.
The voltage of PR216 is approximately 5000 mV.
In the event of a fault, run fault finding on the charging circuit and consult the interpretation of DF012 Sensor
supply voltage no. 2.
V42_V04_PR216/V42_V05_PR216/V42_V06_PR216/V42_V14_PR216/V42_V16_PR216/V42_V18_PR216
Page 203 of 279
17B-203V2 MR-376-X76-17B050$130.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test, then check with the diagnostic tool.
PR312MANIFOLD PRESSURE
PA R A M E T E R
DEFINITIONThis parameter indicates the manifold pressure in mbar.
Conformity check with the engine running and engine coolant temperature > 80°C
With the engine idling, the value must be 500 mbar.
With the engine running and throttle open, the value must be 1000 mbar.
V42_V04_PR312/V42_V05_PR312/V42_V06_PR312/V42_V14_PR312/V42_V16_PR312/V42_V18_PR312
Page 204 of 279
17B-204
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V2 MR-376-X76-17B050$130.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
PR427AVERAGE PINKING SIGNAL
PA R A M E T E R
DEFINITIONThis parameter indicates the average pinking signal.
Conformity check with the 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 the interpretation of fault DF088 Pinking sensor circuit.
V42_V04_PR427/V42_V05_PR427/V42_V06_PR427/V42_V14_PR427/V42_V16_PR427/V42_V18_PR427
Page 205 of 279
17B-205
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V2 MR-376-X76-17B050$130.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
PR429MEASURED THROTTLE POSITION
PA R A M E T E R
DEFINITIONThis parameter indicates the throttle valve position measured as a %.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature > 80°C
Without action on the accelerator pedal, the value must be 10%.
When the accelerator pedal is fully depressed, the value must be 85%.
In the event of a fault, apply the interpretation of faults DF095 Throttle potentiometer circuit gang 1 and DF096
Throttle potentiometer circuit gang 2.
V42_V04_PR429/V42_V05_PR429/V42_V06_PR429/V42_V14_PR429/V42_V16_PR429/V42_V18_PR429
Page 206 of 279
17B-206
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V2 MR-376-X76-17B050$130.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
PR444BUILT-IN CORRECTION FOR IDLE SPEED REGULATION
PA R A M E T E R
DEFINITIONThis parameter indicates the built-in correction for idle speed regulation in N.m.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature > 80°C
The built-in idle speed regulation correction is continuously calculated to take into account consumer air demand.
V42_V04_PR444/V42_V05_PR444/V42_V06_PR444/V42_V14_PR444/V42_V16_PR444/V42_V18_PR444
Page 207 of 279
17B-207
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V2 MR-376-X76-17B050$130.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
PR446UPSTREAM O2 SENSOR HEATING RESISTOR
PA R A M E T E R
DEFINITIONThis parameter indicates the heating resistance of the downstream oxygen sensor in
Ohms.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature > 80°C
The value must be 9 at 20°C.
V42_V04_PR446/V42_V05_PR446/V42_V06_PR446/V42_V14_PR446/V42_V16_PR446/V42_V18_PR446
Page 208 of 279
17B-208
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V2 MR-376-X76-17B050$130.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
PR447DOWNSTREAM O2 SENSOR HEATING RESISTOR
PA R A M E T E R
DEFINITIONThis parameter indicates the heating resistance of the downstream oxygen sensor in
Ohms.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature > 80°C
The value must be 9 at 20°C.
V42_V04_PR447/V42_V05_PR447/V42_V06_PR447/V42_V14_PR447/V42_V16_PR447/V42_V18_PR447