1990 Ford F150 OXYGEN SENSOR

1990 FORD F-150
117,000 MILES • V8 • 2WD • AUTOMATIC
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MPW9000
  • MEMBER
  • 1 POST
MY TRUCKS ENGINE LITE COMES ON AND THE IDEL RUNS UP AND DOWN ALL THE TIME WHEN IT IS AT IDEL.WHEN I HIT THE GAS TO GO IT RUNS OK .
Jan 13, 2008 at 1:34 AM
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BLACKOP555
  • CAR REPAIR CONTRIBUTOR
  • 10,386 POSTS
doesnt sound like a o2 sensor to me! sounds like a dirty throttle body, egr valve, pcv valve, and also a sticking or non functioning IAC module.
Jan 13, 2008 at 8:21 AM
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