If you are using a factory harness and are after an easy ECU upgrade, take a look at Haltech Plug ānā Play Adapter Kits. These adapters plug directly into your Haltech ECU and have a set of factory connectors on the other side which plug straight into the factory harness.
A simple Haltech Plug ānā Play product that allows you to be up and running in just a few hours.
The quick start guide will walk you through installation of the Haltech Plug ānā Play adapter into your vehicle.