Thread: LS Swap Info

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To begin with-do yourself a BIGGGGGGG Favor and mount the ecu where ever the oem harness will reach-splicing wires over 100 times is going to be a big mess----If you want to fab a new harness from ecm pin all the way to the component to eliminate splices is a little different-------

I try to mount the OEM type just inside the body forward/low right side -----sometimes under heat/ac, sometimes side kick panel.

But general rule on GM wiring---black wires are grounds, some can be combined, some eliminated

Red and pink are hot or switched 12v --------

Some where there is a method of buying a single vehicle maintenance site like All -Data, etc

https://www.google.com/url?sa=t&rct=...21421273,d.dmo