Harness question

[CCT]

I'm wanting to put my ECM in the stock battery location but my harness is too short. Does anybody extend harnesses or me a extension?Also how are you mounting the ECM and fusebox? I'm using a GMPP stand-alone harness. Thanks

[hotrodneb]

Flip the harness so instead of it exiting from the R-R it exits the engine R-F. It would prolly require swapping out the injector wires at the ECM but should work