Precautions For Multiport Fuel Injection System

^ Before connecting or disconnecting multiport fuel injection system or ECM (ECCS control module) harness connector, be sure to turn the ignition switch to "OFF" position and disconnect the 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 to eliminate danger.
^ Be careful not to jar components such as ECM and mass air flow sensor.