Multiport Fuel Injection System / Engine Control System

Precautions For Multiport Fuel Injection System or Engine Control System
Before connecting or disconnecting any harness connector for the multiport fuel injection system or ECM:

- Turn ignition switch to OFF position.
- Disconnect negative battery terminal. Otherwise there may be damage to ECM.
- Before disconnecting pressurized fuel line from fuel pump to injectors be sure to release fuel pressure.






- Be careful not to jar components such as ECM and mass air flow sensor.