Fuel Delivery and Air Induction: Service and Repair

Fuel Injection system, repairing





WARNING: Fire Hazard. Do NOT smoke or have anything in area that can ignite fuel!

- the engine control module for the fuel injection and ignition system is equipped with DTC MEMORY (Fault memory)
- activate DTC MEMORY (Fault memory) before repairing, adjusting or troubleshooting the system
- always check all vacuum connections for tightness and condition
- components identified with an * are checked via On Board Diagnosis
- components identified with ** are checked using Output Diagnostic Test Mode (DTM)
- always replace the affected seals and sealing rings during assembly work
- always replace clamps with screw type when replacing hoses
- 10.5 Volts minimum is required for proper function of electrical components

I Motronic ECM. component layout. Locations

II Intake air system. component layout. Locations

III Fuel injection system. Locations

IV Throttle assembly. component layout. Locations

- Safety precautions. Technician Safety Information
- Rules of Cleanliness. Technician Safety Information
- Idle speed checking Testing and Inspection