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Re: Help! EML light and spark plugs black (archive)
[ Follow Ups ] [ 8-series (E31) Message Board ] [ Msg. Board FAQ ]
Posted by Paul Michael Brown on January 30, 2000 at 22:11:59:

In Reply to: Help! EML light and spark plugs black posted by JOHN on January 29, 2000 at 14:02:49:

: I have an 850i 1991. My EML turns on and the car goes into limp-mode. Usually I would let the car run, shut it off and restart it and it would be fine. Now I am having trouble starting it. I put in new plugs. Still the same and now the plugs are black. It appears the the computer is sending out too much gas and not being burned?

It's possible that the intake manifold gaskets are leaking. This causes too much air to get into the intake charge and the software tries to compensate by richening the mixture. Intake manifold gasket leaks are common on E31s as they age. Usually the first sign is rough idle when the car is first started after a very cold night.

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