Page 186 of 279
17B-186V2 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.
PR055ENGINE SPEED
PA R A M E T E R
DEFINITIONThis parameter indicates the engine's rotational speed in rpm.
Conformity check with engine stopped and ignition on.
With the ignition on the value must be 0 rpm.
In the event of a fault, apply interpretation of DF120 Engine speed sensor signal.
Conformity check with the engine running and engine coolant temperature > 80°C
With the engine running at idle speed, the value must be 750 rpm.
In the event of a fault, apply the interpretation of DF120.
V42_V04_PR055/V42_V05_PR055/V42_V06_PR055/V42_V14_PR055/V42_V16_PR055/V42_V18_PR055
Page 187 of 279

17B-187V2 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.
PR059INLET AIR TEMPERATURE
PA R A M E T E R
DEFINITIONThis parameter indicates the air temperature in °C.
Conformity check with engine stopped and ignition on.
With the ignition on the inlet air temperature varies according to the exterior temperature.
In the event of a fault, consult the interpretation of fault DF002 Air temperature sensor circuit.
Parameter PR059 PR064 Coolant temperature engine cold.
Conformity check with the engine running and engine coolant temperature > 80°C
With the engine running at idle speed the inlet air temperature varies according to the engine coolant temperature.
In the event of a fault, refer to the interpretation of fault DF002.
V42_V04_PR059/V42_V05_PR059/V42_V06_PR059/V42_V14_PR059/V42_V16_PR059/V42_V18_PR059
Page 188 of 279

17B-188V2 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.
PR064COOLANT TEMPERATURE
PA R A M E T E R
DEFINITIONThis parameter indicates the engine coolant temperature in °C.
NOTESThere must be no present or stored faults.
Perform this fault finding procedure:
– after finding an inconsistency in the parameter,
– after a customer complaint (e.g. lack of power).
Conformity check with engine stopped and ignition on.
With the ignition on the coolant temperature varies according to the exterior temperature.
In the event of a fault, consult the interpretation of fault DF001 Coolant temperature sensor circuit.
Conformity check with the engine running and engine coolant temperature > 80°C
With the engine running at idle speed the coolant temperature varies according to the engine temperature.
If there is a fault, refer to the interpretation of fault DF001.
V42_V04_PR064/V42_V05_PR064/V42_V06_PR064/V42_V14_PR064/V42_V16_PR064/V42_V18_PR064
Page 192 of 279
17B-192V2 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.
PR098UPSTREAM OXYGEN SENSOR VOLTAGE
PA R A M E T E R
DEFINITIONThis parameter indicates the upstream oxygen sensor voltage in millivolts.
Conformity check with the engine running and engine coolant temperature > 80°C
The upstream oxygen sensor voltage must be between:
20 mV < PR098 < 1395 mV.
In the event of a fault, apply interpretation of DF092 Upstream oxygen sensor circuit.
V42_V04_PR098/V42_V05_PR098/V42_V06_PR098/V42_V14_PR098/V42_V16_PR098/V42_V18_PR098
Page 193 of 279
17B-193
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
PR099DOWNSTREAM OXYGEN SENSOR VOLTAGE
PA R A M E T E R
DEFINITIONThis parameter indicates the downstream oxygen sensor voltage in millivolts
Conformity check with the engine running and engine coolant temperature > 80°C
The downstream oxygen sensor voltage must be between:
0 mV < PR099 < 1000 mV.
In the event of a fault, apply interpretation of DF093 Downstream oxygen sensor circuit.
V42_V04_PR099/V42_V05_PR099/V42_V06_PR099/V42_V14_PR099/V42_V16_PR099/V42_V18_PR099
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 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