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I am in the process of wiring up my m30b34 engine with Motronic 1.0 and I was planning on using the 528i head with the L-Jet distributor ive seen it done but with Motronic 1.3; however, I was woundering if anyone knew what the purpose or how the green wire connector in the side of the distributor worked and how i can wire it when I swap out the wiring harness. Any information helps than k you

I found this picture here with someone els saying that "The green wire to the distributor is (for L-jet) the primary timing signal for the whole engine, and connects to a hall-effect sensor within the distributor "

i am unsure if that green wire is necessary for motronic since im not sure how the motronic ignition works exactly.
I think this is a question probably for the e28/24 guys but if anyone has done this before it would help a lot

Ok so i solved my own question after a bit of research the motronic systems computer controls ignition and all other timing aseptic so this wire is not necessary since the computer take the place of the hall effect sensor that reads the distributor.

Adam,

Glad to see you were able to answer your own question. Indeed, when upgrading from l-jet to Motronic, some components will be deprecated, as mechanical methods of engine timing (e.g. hall-effect sensor/distributor interconnection) are taken over by other methods.

Mike