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Idle question 700 1990

posted by  Will740turbo on  Fri Jan 19 17:07 CST 2007
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last visit: Wed Oct 22 16:09 CST 2014
[RELATED]

It sounds like you need to clean your throttle body or your throttle plate is not completely shut. The idle set screw should be set to keep the throttle plate shut, not to keep a constant idle. It could also be that the TPS is misaligned or not functioning.
My car did the same thing, where the rpm would sometimes drop really low and move between 400 and 700 rpm and change depending on the temperature. It turned out that this happened because the contact for the TPS had broken off behind the connector.

Good Luck, post back what you find,
Will
--
1990 740 Turbo, on its way to stock specs, maybe beyond






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New Idle question [700][1990]
posted by  someone claiming to be 740_gl_owner  on Fri Jan 19 07:13 CST 2007 >


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