Question about 1997 Pontiac Sunfire

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97 pontiac sunfire idles rough and wont go past 20

I got a 97 sunfire and it just started running rough recently. also when i went to accelerate it was slow and would not go above 20 mph; though the rpms got up to 3. i had a check engine light come on that came up as a something wrong with the IAT sensor and a coolant sensor but then i was told to try unhooking 3 different sensors along the air filter hose. there was one by the air filter housing, one by the fire wall and one in between. i unhooked the one in between and it seemed to run a lil better and actually kept the rpms down to 2.

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PLUG EVERYTHING BACK IN.....
REPLACE THE IAT (INTAKE AIR TEMP SENSOR) AND THE COOLANT SENSOR THEY BOTH WORK AS PART OF THE FUEL CONTROLL SYSTEM
LET ME KNOW HOW IT GOES
RATE MY SOLUTION

Posted on Dec 11, 2008

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Posted on Jan 02, 2017

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