Originally posted by lukeADE335i
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I'll quote what FrankM says about the M30 loom in the swap guide below
"If your E32 came from an automatic transmission car, then you might want to consider option 2. If not, then you will have to wire and bypass the automatic transmission park. My E32 came from an automatic car. I tried fervently to wire it up, then gave up and simply went to option 2. If you must, then good luck. The E32 engine that I bought has 2 plugs. I tried to take the regular ECU from the M30 engine (ECU 0 261 200 179), and put it on. On the C-101 plug (by the fuse box on firewall), there is a round engine plug. Take the harness from my E32 engine and plug it directly in. That should send gauge signals and ignition stuff through. All in all, it wasn’t a direct plug-in and I couldn’t figure out which wire went where. Take a look at what it looked like trying to find the automatic park"
Sounds like he just couldn't figure out the C101 plug although maybe it was more about the starter relay/wiring. He then just went on to use a manual 325i loom.
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