2001 Chevy Cavalier high idle

Tiny
RICHARD09
  • MEMBER
  • 2001 CHEVROLET CAVALIER
  • 4 CYL
  • 2WD
  • MANUAL
  • 140,000 MILES
I have a 2001 cavalier z24 at idle it is at 1700 RPM I have tryed the IAC valve, MAP sensor, and TP sensor I did not find any vaccum leaks the temp sensor is good. I am out of ideas. The sensors should use 5v power supply I tested it and it has a 7.34v power supply on the MAP sensor and the TP sensor. Would that voltage change the readings and cause it to idle high? Would it be the computer?
Sunday, January 4th, 2009 AT 2:50 PM

2 Replies

Tiny
GUITARIC137
  • MEMBER
  • 1 POST
Have the same prob. Have you found any solutions yet?
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Tuesday, February 10th, 2009 AT 6:40 PM
Tiny
RICHARD09
  • MEMBER
  • 3 POSTS
I changed the throttle body 2 days later the idle seemed to correct its self so I dont know if the IAC had to go threw a computer relurn or what. I guess your susposed to turn the key on so the valve is fully out then turn the key off and then start the car. This will relurn the IAC position.
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Tuesday, February 10th, 2009 AT 8:57 PM

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