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Your PCM will be tuned for stand alone use. A performance tune will also be applied which is good for an additional 20 HP on I5s and I6s. Return shipping is included.
What do I get?
Lime-Swap includes all connectors needed to run the engine and the 4L60E transmission. All 3 PCM connectors are integrated in the engine harness, along with the APPS (pedal) and OBD connector. Circuits are broken out and fused per the factory configuration. Relays for PCM power, and fuel pump are provided. You will get complete documentation and wiring diagrams should you wish to modify anything in the future. The result is one clean, labelled harness that requires only the following connections to run the engine: Ignition, Crank, and Fuel Pump. We will also break out wires for optional connections such as: MIL light, speedometer, tachometer, etc.
OR...GM Atlas Engine Integrated Harness Rework and Tuning
Available for all of the Atlas inline engines: 2800/2900, 3500/3700 and 4200. Send the engine harness out of your engine to be swapped, and we'll convert it for use in your vehicle. Each conversion is custom, but generally, we'll get the engine starting off or your existing key, and integrate all the gauges and fuctions that are feasible. The lead time on harnesses is about 4 weeks.
Your PCM will be tuned for stand alone use. A performance tune will also be applied. Return shipping is included.
New build 2002 - 2009 4.2 I6 Stand Alone Harness and Tuning
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Secondary Air Injection Reaction wiring is not included.
Harnesses arrive labeled with installation instructions.
A performance tune will be applied. Shipping is included. Allow 4 weeks lead time.