System Diagnosis - Fuel Metering System

Fuel System:

DIAGNOSTIC PROCEDURES
Always begin diagnosis of the electronic fuel injection system with the "On-Board Diagnostic (OBD) System Check" before proceeding to any other diagnostics. This will reduce diagnosis time and prevent unnecessary replacement of parts. The "On-Board Diagnostic (OBD) System Check" will give direction to further diagnostics, such as "Engine Cranks But Will Not Run" or a diagnostic trouble code chart. Diagnosis of electronic fuel injection pump, including the fuel injection solenoid, fuel solenoid driver, injection timing stepper motor and engine shutoff solenoid also starts with the "On-Board Diagnostic (OBD) System Check." Refer to Computers and Control Systems / System Diagnosis. Testing and Inspection

If a driveability symptom exists, refer to the particular symptom under Computers and Control Systems / System Diagnosis / Procedures / Diagnosis By Symptom. Testing and Inspection