For 1990-2009 cars

### Removal Procedure

Important: Replace or repair wiring harnesses observing the safety regulations of electrics/electronics.

Caution: Refer to Battery Disconnect Caution in the Preface section.

1. Disconnect the battery.
2. Remove the wiring harness for fuel injection.

### Installation Procedure

1. Install the fuel injection wiring harness.
2. Connect the battery.
3. For programming procedures, refer to Control Module References .