Fixing a removed C191 connector

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  • grantmiller1
    Member
    • Jun 2017
    • 52

    #1

    Fixing a removed C191 connector

    Back in May, I was upgrading my injectors (to some E36 injectors) and I discovered that the previous owner had removed the C191 connector and used butt connectors to splice the wires together. That prevented me from removing the fuel rail so that I could pull the injectors out.





    After some head scratching and WTF's, I did some googling and found a nice solution from kentite on bimmerforums. He had a nice doc on what he did that I'll share here:

    I recently purchased a 1989 325is. Drove it home 300 miles with no problems besides a hot start issue. After a little research I determined that anything from a vacuum leak to leaky injectors to bad coolant temp sensor could be causing the issue. Given that the car had 175K on it I decided to rep...



    I picked up some weatherpack connectors from Jegs and wired up two sets of plugs with the fuel rail removed from the car. I used red, brown, yellow and purple wire to give myself a visual difference between one connector and the other. I used about 12 inches of this wire to give myself some needed length.





    To connect the wire that was in the bowels of the engine bay, I decided to slip on some heat shrink tubing and solder my new wire to the existing wire in the engine bay. This required another set of hands to hold the wire in place (and a piece of wood behind while I was running a propane torch across the heat shrink tubing. This (in my mind) was easier than trying to strip wires and put weatherpack connectors in the wires in the engine bay.





    Still on my todo list is to wrap the whole thing again with some cold shrink tape to keep the water out. May be unnecessary as it's worked since I put this all together in May.
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