System Diagnosis - Fuel Metering System
Always start diagnosis with the On-Board Diagnostic System Check under Computers and Control Systems/System Diagnosis. Testing and InspectionThis will reduce diagnosis time, and prevent unnecessary parts replacement. Diagnosis of the fuel metering system is covered in A Charts/Chart A-3 Engine Cranks but Won't Run, and Chart A-7 Fuel System Diagnosis. Related Tests, Information and Procedures
These charts cover the diagnosis of the injectors, fuel pressure regulator, and the fuel pump. Diagnosis of the fuel pump relay and fuel pump and engine oil pressure indicator switch is covered in the Diagnostic Trouble Code Charts/DTC 54 Fuel Pump Circuit (Low Voltage). Powertrain Controls - ECM/PCM