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E36 M3 (1995-1999)

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Old 05-21-2019, 08:43 PM
HotWaterMusic HotWaterMusic is offline
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Location: Austin, Texas
Join Date: May 2019
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Mein Auto: 97 M3, 87 635
Any E36 M3 Engine wiring harness experts out there?

Quick backstory: I have a 97 M3 sedan, and the wiring harness had a bad ground-wire meltdown. After much sourcing, I found and have (almost) replaced the wiring harness with one from a '99 (build date 3/99). Here's where the problem has come in. I labeled and took pictures of everything I thought I needed to, to guarantee the plugs matched up on reinstall...but have hit a snag.

What I've since found out:
When BMW did a crank position sensor recall on the E36, they included a new sub-harness that attached to the existing one. My car had this recall done before I owned it. The sub-harness went to: The new CPS, the VANOS, the fuel injector rail, and a fourth connector to attach back to the main harness.

When I pulled the burned engine harness out though and installed the "new" one from 99, I simply don't have the same plugs to work with. The 99 harness already had a direct connector to the Crank position sensor, so I removed the sub-harness as I thought it wasn't needed. But now I don't have a wire to connect to the last connection on the fuel injector rail, or to the 2-prong male connection on the underside of the intake manifold. The only connectors I haven't plugged in are two female 3-prong (pictured), and they will be accounted for on the MAF and underside of manifold (I mean, at this point though I am honestly not sure).
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So my question is, is this 3/99 build date 99 wiring harness I am using "too new" for my 97 engine? I am missing two complete connections that I know I am not simply overlooking, they just aren't there. The end of the injector-connecting rail, here:
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And on the underside of the manifold, here:
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Both are two-prong and I have no loose two-prong connectors, male or female. Does anyone know what is going on, or can point me to some body/place that might? I am my wits end on this. Thanks!
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