DESCRIPTION:
Fuel compensation pressure (FCP) sensor circuit failed low.

MONITORED PARAMETER:
Fuel compensation pressure sensor.

TYPICAL ENABLING CONDITIONS:
Always enabled

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Always enabled

TYPICAL DURATION:
Two seconds

DASH LAMPS:
1. MIL
2. CEL

ENGINE REACTION:
None

VERIFICATION:
Engine Idle: One minute.

PROBABLE CAUSES:
1. If 100-3, 4077-3, 3480-3 are also present, repair the wiring between pin 104 of the ECM connection and fuel compensation pressure sensors.
2. If 4407-4 or 3480-4 are present, repair the wiring between pin 104 of the ECM connection and the fuel line and fuel compensation pressure sensor.
3. Fuel Compensation Pressure sensor.
4. Fuel compensation pressure harness/connector.