1994 pontiac firebird 3.4 starts then idle go to about 6 grand map sensor plug is broke somebody please help
Apr 24, 2011 at 10:05 AM
high idle
ERICLAMAR
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the first thang you need to do is fix your map sensor and look at all the cables then look at all of your vacum lines there could be a leake .
Apr 24, 2011 at 10:15 AM
In addition to that info, you may have a bad IAC ( idle air control) but try eliminating any vacuum leaks and cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.
Apr 24, 2011 at 11:48 AM
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