1990 Ford Probe factory set air fuel adjustmet

96,000 MILES • 4 CYL • FWD • MANUAL
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JOHN PAUL RUSSELL
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  • 2 POSTS
Mt GT 2.2l Ltr Turbo has a factory set screw adjustment for fuel air mixture optimization. I learned too late after purchasing a Ford Shop Manuel that I should not have attempted to fine tune this setting. I obviously am now set too rich. The spark plugs are indicating soot and there seems to be more heat coming from the upper engine, although the analogue gauge does not indicate an excessive temperature reading. Please advise. Also please indicate whether lean is counter clock-wise or other.[img:80f78c48d0]http://www.2carpros.com/forum/automotive_pictures/569659_DSC00178_1.jpg[/img:80f78c48d0]
Sep 5, 2010 at 2:08 PM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Hi there,

This will have to be re set with the use of an exhaust gas analyzer, there is no way of second guessing the correct position, this will have to be done by a mechanic with the correct equipment.

mark (mhpautos)
Sep 5, 2010 at 3:46 PM
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