1991 Other Toyota Models IDLING TOO HIGH

1991 TOYOTA
131,000 MILES • 4 CYL • 2WD • MANUAL
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ARUGUT
  • MEMBER
  • 2 POSTS
My car idles at between 1500 rpm and 2000 rpm.what could be the problem.And according to my mechanic that's the lowest it can go,as in all the adjustments are at mimumum.what could be the problem?
Jun 13, 2008 at 1:46 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,814 POSTS
Hi arugut,

If all adjustment are at its lowest, then you have a vacumn leakage or worn throttle valve.

Other possible causes are TPS and MAP/MAF
Jun 13, 2008 at 2:43 AM
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