PRECAUTIONS

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.