Ran great for 6+ months, now it won't start

[RedTRex]

Hmmm ..... I just aquired an engine side c101 and have been going through my wires - my pin 17 is empty ..... but on my m50 harness, I see pin 7 is labled as starter immoblization ......

So - the key is to leave that one unconnected - Right? or can it be used as a manual switched engine kill? Grounded to kill? I will need to look that up.

[JGood]

Hmmm ..... I just aquired an engine side c101 and have been going through my wires - my pin 17 is empty ..... but on my m50 harness, I see pin 7 is labled as starter immoblization ......

So - the key is to leave that one unconnected - Right? or can it be used as a manual switched engine kill? Grounded to kill? I will need to look that up.

Square c101 from 84-85? I grounded x20 pin 7 when it was connected to c101 17 and the car started, and it starts without anything connected, so I think giving 12v to pin 7 of x20 kills fuel/spark. I can't really recommend using that though, maybe it's supposed to just get a low voltage signal of some sort, you could fry something if so. You'd have to check the diagrams on an e34/e36 body side.

[RedTRex]

No .... I have an '87 Cabrio with a round C101 - sold the m20 with harness so I had to source another engine side piece - Got that, a manual trans brace, late model valance, plastic bumper, and 86 Supra window switch (son's car) for $48..............

Good point though - I will research in the e36 ETM.

[MIKe30]

i am not looking forward to my wiring...

[RedTRex]

actually ---- It's easier than you think ,,,,,, I am awaiting new pins right now.

I could send you my .xls (92 M50 N/V going into an 87 325ic)

[JGood]

I think the wiring is easy. The only trouble I had was the extra flaky old style c101 connector (prevented my car from starting for an entire week after I did the swap), and the diagnostic connector that I hooked up wrong (not sure how I did that. Going back through the ETM, it is clearly the immobilizer that I hooked up, not sure why I thought it was diag connector). I would never even consider paying for a pre-made harness adapter. If you can change oil, you can do a harness adapter, unless you don't know how to read.