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Discussion Starter · #1 ·
I have a 93 4.3L with a 16168625 ecm. I bought a painless wiring harness and it is only for 1227747 or 16121154 ecm's. I am trying to just swap out the connectors by matching up the wires.

Has anyone done this?

I am almost there but the injector wires are different. The ecm I have only shows two wires. Injector a and b. The ecm for the harness shows two wires per injector. The wiring diagram for the ecm I have shows that the other two wires to to (ecm 1 fuse 10a) and the harness has all 4 wires at the plug.

Any help would be greatly appreciated.
 
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