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RMARIANI · 01-30-2001, 01:35 PM

My '89GT's idle surges up to 2500 RPM and stays there until I turn the ignition switch on and off. I've learned to do this quickly so as not to stall the motor. I've replaced and correctly set my TPS. What's interesting to me is that the problem gets worse in the rain or when it is very humid out. Recently the problem ONLY surfaces in the rain. Any suggestions??

01-30-2001, 01:35 PM	#1
RMARIANI Registered Member Join Date: Apr 2000 Location: New Jersey Posts: 167	Engine Idle Surge My '89GT's idle surges up to 2500 RPM and stays there until I turn the ignition switch on and off. I've learned to do this quickly so as not to stall the motor. I've replaced and correctly set my TPS. What's interesting to me is that the problem gets worse in the rain or when it is very humid out. Recently the problem ONLY surfaces in the rain. Any suggestions??