1991 Mazda 323 Causes Engine Idle High Even After Reaches Normal Operatin

1991 MAZDA 323
105,825 MILES
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ANONYMOUS
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what causes the engine to idle high even after the engine reaches its normal operatin temperature?
Feb 9, 2013 at 5:20 PM
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MHPAUTOS
  • ✓ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
may be a faulty coolant temp sensor and a faulty IAC and also check for engine vacuum leaks, start here.
Feb 9, 2013 at 11:38 PM
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