I have a 1992 plymouth laser rs awd. I bought it like a week ago and when i bought it it would idle at about 700-800 rpms. Now when i start the car when its hot the car idles between 1500-2000 rpms. My car is stock except for the air box hack.Does anyone know why its idling so high
Car idle problem????
Boost92AWD
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i dont have anyway to log my coolant temp? whats CTS? I noticed it only starts to idle high when im driving around town, like 25-40 mph at night tho. But when i drive faster than that for alittle while it will idle lower. so it defintly something with how hot the engine compartment is
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I just drove my car to work today and its about 55 degrees outside and overcast/ raining on and off. The idle was fine all the way to work. How would i go about checking the CTS?
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Typically you would use a logger to check the values that it is outputting to the ECU. When they go bad they are usually pretty obvious because the readings make no sense. The other way to check them is to compare the value on the logger to a temperature determined from an IR thermometer on the coolant. This can be a little tricky on our cars though.
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I'm telling you man, you have the EXACT symptoms I had. Look at my previous post and check out the throttle cable. All you have to do is next time the car's idle starts going up to 1500-2000, pop the hood and get out and see if the throttle cable is tight. You'll be able to tell if it's too tight and holding the throttle open. Or you can try stomping on the gas pedal several times really quickly and you may be able to unstick the cable and your idle will drop. That worked for a couple times until I fixed it. It's an easy thing to check for so I advise you to do that before screwing around with your ISC and sensors.
I knew there had to be a way to do it but I couldnt quote proper values and did not want to mislead him.
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Thanks for all your help. I will probally have to wait untill its hot out again cause it seems like thats the only time it does it. I will keep you guys posted
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