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Re: GM LS crate engine wiring
Posted to Technical Discussion Forum on 1/21/2021 1 Reply

There is no wiring diagram available, at least that I can get GM to tell me., GM gives you an ECM, Harness, relay fuse box, and says plug in the sensors, injector etc. hook up a battery 12 volt and a key on 12 volt. They do not give or have a wiring diagram fo... Login to read more.

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