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System Tests: Notes

NOTE: These test procedures are only to be performed when referenced from another procedure. DO NOT perform these tests unless referenced to do so.
GENERAL TEST INDEX

Test Used To Diagnose
VEHICLE REFERENCE VOLTAGE  VREF Malfunctions
TACHOMETER OUTOUT FAILURE  Clean Tachometer Output Malfunctions
MALFUNCTION INDICATOR LAMP  MIL Malfunctions
INTERMITTENT  Intermittent Concerns
FUEL DELIVERY SYSTEM  Fuel Delivery Concerns
POSITIVE CRANKCASE VENTILATION SYSTEM  PCV System
PCM POWER RELAY  Electronic Engine Control Power Relay Failure
CRANKSHAFT POSITION SENSOR  CKP Sensor, Harness & PCM Malfunctions
FUEL PRESSURE REGULATOR  Fuel Pressure Regulator Function
FUEL PUMP INSPECTION  Fuel Pump Function
FUEL LINE PRESSURE/FUEL PRESSURE HOLD INSPECTION  Fuel Line Pressure & Pressure Hold
FUEL INJECTOR INSPECTION  Fuel Injector Concerns
EGR VALVE  EGR Valve
EGR VACUUM REGULATOR  EGR Vacuum Regulator Solenoid
DIFFERENTIAL PRESSURE FEEDBACK EGR SENSOR  Differential Pressure Feedback EGR Sensor
NO START  No Start Condition
IGNITION SCOPE PINPOINT  Ignition Coil Malfunction & Misfires