1987-93 Mustang 5.0L Replacement Engine Harness Installation Instructions

Installation Instructions:

1. Disconnect the battery
2. Installation will be easier if upper plenum is removed
3. Remove the factory harness, taking note on how the wires are run. Disconnect the main black, and white connectors at the back of the engine
4. Install replacement harness following factory routing. Make sure ground lug has clean metal, and will make good contact to intake bolt
5. Complete installation by confirming harness is routed away from exhaust, and any moving parts