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Re: diagnostic connector (archive)
[ Follow Ups ] [ 3-series (E21) Message Board ] [ Msg. Board FAQ ]
Posted by Daniel Narvaes on September 01, 2001 at 21:16:31:

In Reply to: Re: diagnostic connector posted by Peter S on September 01, 2001 at 13:07:20:


I'd like to know what diagnostics can be gained from this plug.

Not much, to be sure. I think it is basically to tell you if the engine wiring is in okay condition and connected properly. My mechanic probably only used it because I had mentioned to him that I just rewired the car, so he wanted to make sure I did it right. Many cars from this era (just before computers) had a similar diagnostic plug. One wire from the battery, one from the starter, one from the alternator, one from the ignition system, a ground wire, and a couple of others.

The reason I am still doing a lot of work on the car was that the mechanic's estimate to get it running was $2000, and I don't have that much money. He told me exactly what was wrong with it, though (bad exhaust valve #3 cylinder and bad warm-up regulator) so I am fixing it myself. Maybe I will find out why the price is so high.
If I have other questions, I'll let you know.



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