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Does anybody Know What would Cause CEL 45 to come on

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Old 08-20-2003, 12:56 PM
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Default Does anybody Know What would Cause CEL 45 to come on

Its running too lean or too rich
Old 08-20-2003, 08:11 PM
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Default Re: Does anybody Know What would Cause CEL 45 to come on (Slammed Si)

anyone...?
Old 08-21-2003, 03:45 AM
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Default Re: Does anybody Know What would Cause CEL 45 to come on (Slammed Si)

Your Long Term Fuel Trim has hit its ceiling of +/- 20%.
Old 08-21-2003, 11:10 PM
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Default Re: Does anybody Know What would Cause CEL 45 to come on (EE_Chris)

huh? what does that mean and how can I fix it so my CEL goes off?
Old 08-22-2003, 04:10 AM
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Default Re: Does anybody Know What would Cause CEL 45 to come on (Slammed Si)

It means that your O2 sensor has reported, for too long a time, that the a/f mix was either too rich or lean.

To fix it means identifying the cause of the problem: Is your O2 really bad, or is your a/f mix fucked up....which one is the culprit is something you need to investigate.
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