1999 Mercury Tracer Keep Getting Code 1504 1506 High Idle Read Somewhere U

1999 MERCURY TRACER
54,000 MILES
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JOHN6619
  • MEMBER
  • 1 POST
I keep getting code 1504 and 1506. High idle. I read somewhere if u disconnect the IAC and there is no change in idle speed, it could be the problem? Its an awfully expensive part to guess. I can't find any vacuum leaks or obstructions.
Mar 14, 2013 at 11:39 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
what you read was correct. the part is about 79 and you can replace it easily.

Roy
Mar 15, 2013 at 12:39 AM
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