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Re: '85 745i fouling plugs on cold start (archive)
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Posted by Jens T.M.745 on March 10, 2002 at 21:51:08:

In Reply to: '85 745i fouling plugs on cold start posted by Keith Way '85 + '86 745i on March 10, 2002 at 21:37:27:

Exuse me "the piss out of it?" LOL
I would start at your cold start sensor
and sending unit,
then also install the vapor repair on your
fuel system shown on hotsart problem on site below. This is not just a hotsart problem.

The Center sensor with the brown plug,
when engine is cold and you start the engine
it shoud show voltage for 7 second,
now do same test when engine is at normal temp.
should show no voltage, but still could be a
faulty cold start valve.

Also you could have a vacuum leak, thus ones sitting for a while trying to recoop.
Try this turn key to Accs. for 5min before starting, then start.

Sincerely Jens

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