Im looking at getting an m50b25 engine from a 3/525i complete with the harness and ECU. It will be going into a 318is that had the m42 motor. Ive read thousands of threads about swaps but most of them seem to start from 325s. In those cases it appears that you splice the engine harness into the existing body harness and swap ECUs. But in my case, would I need to install the complete harness into my body since mine was a 4 cyl?
And what about the ECU? Both engines I'm looking at are coming from Automatic cars. Do they need to be chipped, or does anything need to be done to them electronically so they will work properly on a manual trans car?
TIA...
And what about the ECU? Both engines I'm looking at are coming from Automatic cars. Do they need to be chipped, or does anything need to be done to them electronically so they will work properly on a manual trans car?
TIA...
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