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Discussion Starter #1
Well I have a 91' camaro rs 3.1L...My problem is when I am slowing down at a intersection my engine rpm's flare up to about 1500-2500 about three times and if it doesnt stall it drops to 500-600 and stays there...I just replaced the idle air control valve since my local mechanic said that was the problem..Wrong..Still does the same thing..Before I go and start blowing any more money I thought it would be a good idea to get a little help..The car has a hypertech thermomaster chip and a powerstat..Also I just gave it a fresh tune up..Plugs,wires,cap,rotor,and adj. the timing....I would appreciate any help.. By the way anyone like to buy a nice Alpine Stereo...Custom built for a 91'
 

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Have you checked to see if there are any trouble codes stored in ECM's memory?

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Robert Yates for President!!
 

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Yes...The engine light never came on but I still checked for the codes anyway...It gave me only code 12..It started acting funny when I took it out of storage...The firt thing that went wrong was the coolent temp sensor, easy fix..Then came the idle problem.
 

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Was the battery disconnected at all? I realize you didn't get any trouble codes but the battery should still be disconnected when replacing sensors so the computer can reset.
 
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