LQ4 harness to an LS1?

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May 14, 2007 | 01:17 PM

kirtondog23

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From: Utah

LQ4 harness to an LS1?

I am wondering whether an LQ4 harness will plug into an LS1 PCM. Does anyone know if this will work?

Thanks

May 14, 2007 | 01:24 PM

Jones'n

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From: Tampa, FL

Usually it will, but that doesn't necessarily mean it will work. Also, it may not even plug in if it is too new. The harnesses with the blue and green connections don't work with the older blue/red ECM's without some changes to the wiring and/or program

May 15, 2007 | 01:08 AM

Ls2Sonoma

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From: edmonton

hes right, not all the years are compatible. youll run into different pinouts on cars to trucks such as electric fans, or traction control. can you be more specific on what harness and pcm you want to put together?

May 15, 2007 | 10:00 AM

88s10

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From: seaford D.E

Truck injector plugs are not the same as the cars. The truck harness runs on top of the intake, ugly as all get out. I would try to find a car harness if at all possible.

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