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Old 01-09-2021, 05:34 PM   #3
StoneWheelRacing
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Join Date: Dec 2020
Location: Upstate NY USA
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Default Wiring Harness Swap

While putting an M52B28 into our '98 TI we purchased a '99 M3 manual trans engine harness with a few burned wires for the fuel circuit.

Harness seller says the wrong relay was put into his M3 harness and the wires for that socket/circuit burned up.

Our M52 donor was a '96 OBDII cabriolet automatic. I know, or have been told, an auto harness works in a manual car but didn't want any extra unused wires, plugs etc... hanging around.

Ill be pulling the same circuit (fuel wires, socket terminals, sockets etc...) from the 96 auto harness and setting it into the 99 manual harness.

Hopefully it arrives today so we can get started. Have solder and shrink tubing ready to go.

I do plan to pull the terminals out of the relay sockets so I can re-shrink tube the enter harness for a more factory look.
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