1993 Toyota Corolla lambda reading

1993 TOYOTA COROLLA
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ONEVOD
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  • 1 POST
Engine Performance problem
1993 Toyota Corolla 4 cyl Front Wheel Drive Manual
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my lambda fast idle test and secind fast idle test is .02 over the 1.07 pass reading for emissions.
what do I do to rectify this.
Jul 4, 2008 at 2:37 PM
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KHLOW2008
  • ✓ASE Certified Mechanic
  • 41,814 POSTS
  • ASE Certified Mechanic
Hi onevod,

The engine is runnig rich so you need to check spark plugs, air filter, throttle body, MAP and IAC.

If these does not help, then you need to check the fuel regulator and/or injectors.
Jul 8, 2008 at 1:45 PM
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