PETROL INJECTION
Fault finding - Interpretation of parameters
17B
17B - 209
PETROL INJECTION
Fault finding - Interpretation of parameters
17B
17B - 209V9 MR-372-J84-17B050$705.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
PR098
CONTINUED
If the fault is still present, replace the upstream oxygen sensor.
If the fault has still not been cured, continue with the checks.
Check:
– the condition of the air filter,
– that the air inlet circuit is not blocked,
– the condition and conformity of the spark plugs,
– that the catalytic converter is not clogged,
– the sealing between the throttle valve and inlet manifold,
– the manifold pressure sensor sealing,
– the fuel vapour absorber bleed, which must not be jammed open,'
– the fuel vapour absorber bleed system sealing,
– the brake servo system sealing,
– the cylinder head oil vapour recovery system sealing,
– the sealing between the inlet manifold and cylinder head,
– the exhaust pipe sealing between the cylinder head and catalytic converter.
– the fuel flow rate and pressure.
If the idle speed is not stable, check:
– the timing adjustment,
– the hydraulic tappets if there is camshaft noise (see MR 364 or 370 Mechanics, 11A, Top and front of engine),
– the cylinder compressions.
Drive the vehicle to check the repair.
AFTER REPAIRRepeat the conformity check from the start.
PETROL INJECTION
Fault finding - Interpretation of parameters
17B
17B - 212
PETROL INJECTION
Fault finding - Interpretation of parameters
17B
17B - 212V9 MR-372-J84-17B050$705.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
PR312
MANIFOLD PRESSURE
NOTESThere must be no present or stored faults.
Check the cleanliness and condition of the manifold pressure sensor and its connections.
Repair if necessary.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the connections.
Using the Universal bornier, check the insulation and continuity of the following connections:
Injection computer, connectorB, track H2 track C of the manifold pressure sensor
Injection computer, connectorB, track H3 track B of the manifold pressure sensor
Injection computer, connectorB, track H4 track A of the manifold pressure sensor
Repair if necessary.
If the fault is still present, replace the manifold pressure sensor.
If the fault is still present, carry out the following checks:
The inlet line must be perfectly sealed, from the throttle valve to the cylinder head.
Check:
– the condition of the air filter,
– that the air inlet circuit is not blocked,
– the sealing between the throttle valve and inlet manifold,
– the manifold pressure sensor sealing,
– the fuel vapour absorber bleed, which must not be jammed open,
– the fuel vapour absorber bleed system sealing,
– the brake servo system sealing,
– the cylinder head oil vapour recovery system sealing,
– the sealing between the inlet manifold and cylinder head,
– the exhaust pipe sealing between the cylinder head and catalytic converter.
Repair if necessary.
AFTER REPAIRRepeat the conformity check from the start.
S3000_V4C_PR312/S3000_V54_PR312
