GSIC - Global Service Information Center

### DTC P0088/78 Fuel Rail / System Pressure - Too High

DESCRIPTION

MONITOR DESCRIPTION

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P0088/78 AND/OR P1229/78)

REPLACE COMMON RAIL ASSEMBLY (PRESSURE LIMITER)

INSPECT SUPPLY PUMP ASSEMBLY (SUCTION CONTROL VALVE)

CHECK IF DTC OUTPUT RECURS (DTC P1229/78)

CHECK WIRE HARNESS (SUCTION CONTROL VALVE - ECM)

CHECK ECM (PCV SIGNAL)