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1994 Ford Mustang HIGH IDLE

Tiny
FXDSR
  • MEMBER
  • 1994 FORD MUSTANG
  • V8
  • 2WD
  • MANUAL
  • 19,145 MILES
Experiencing high idle after adding OTC fuel injector cleaner to fuel. Is now idling around 2,000 RPM, drops to 1700 - 1800 RPM after a few minutes. Had been idling normal prior to adding cleaner.
Saturday, September 5th, 2009 AT 7:35 AM

3 Replies

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok this may or may not have anything to do with the cleaner. I need to ask a few questions first ok. Is the check engine light on? If not then have you disconnected the battery to see if things reset? If the engine light is on do not disconnect the battery as I will walk you through how to pull codes with a test light and paper clip. Get back to me.
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Saturday, September 5th, 2009 AT 9:05 AM
Tiny
FXDSR
  • MEMBER
  • 2 POSTS
Thanks for responding to my question. No, the check engine light had not come on, I disconnected battery, cleaned both posts and clamps, waited then reconnected, restarted engine, did not RESET itself.
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Saturday, September 5th, 2009 AT 10:19 AM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok does you Mustang have a mass air flow meter? If so unplug it and see how it idles. Get back to me.
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Monday, September 7th, 2009 AT 5:23 PM

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