17B-198
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
PR139RICHNESS ADAPTIVE OPERATION
PA R A M E T E R
DEFINITIONNo faults must be present.
Conformity check with the engine running and engine coolant temperature > 80°C
Check the sealing of the fuel vapour absorber bleed.
Repair if necessary.
With the engine warm in the idle speed regulation phase, look at parameter PR139.
– If the parameter goes to MAXIMUM stop, there is not enough fuel or too much air in the mixture.
– If the parameter goes to MINIMUM stop, there is too much fuel or not enough air in the mixture.
Check the cleanliness and correct operation of:
– petrol filter,
– petrol pump,
– fuel circuit,
–tank,
– air supply pipe,
– air filter,
– plugs.
Repair if necessary.
Check:
– the compressions,
– the valve clearance,
– the ignition.
Repair if necessary.
V42_V04_PR139/V42_V05_PR139/V42_V06_PR139/V42_V14_PR139/V42_V16_PR139/V42_V18_PR139
