1996 Chevy Beretta Fast Idle

1996 CHEVROLET BERETTA
136,000 MILES • 6 CYL • FWD • AUTOMATIC
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STEWART75
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  • 1 POST
My beretta idles fast when the temp outside is 50 degrees or lower. When it is warmer out 50+ it idles normal. Im thinking it must be some kind of sensor but not sure what it would be. Thanks
Apr 17, 2008 at 10:16 AM
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WILDFIREV9
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First thing is to have the codes read.
You have a sensor in the intake air hose (or in the air cleaner housing) that reads air temp and sends it to the pcm. The pcm uses this and other sensor data to set timing, fuel mixture, idle, etc.
The code read will tell you if that or another sensor is defective.
Also check to see if your intake hose is cracked, allowing air to bypass the sensor.
VIC wildfirev9
May 14, 2008 at 1:17 AM