High idling

2007 CHEVROLET COBALT
120,000 MILES • 2.2L • AUTOMATIC
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DIAMONDQUEEN36
  • MEMBER
  • 1 POST
It idles too high unless I have it in park changed the maf sensor. The air intake seems fine so now I am lost as to what could be the problem.
Jun 5, 2016 at 6:24 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
scan for codes and check fuel pressure with a gauge check for a vacuum leak hoses disconnected etc. auto parts rent gauge.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Jun 6, 2016 at 12:27 AM
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