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Old 01-19-2006, 07:30 AM   #18
Italian LX
Daddy x4 ...we're done
 
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Join Date: Dec 2004
Location: Oxford, AL
Posts: 11,551
Re: I may have figured out my detnation and lean AFR problem.....

Quote:
Originally Posted by Wall96cobra
that's what I was thinking, it may have been fine on the dyno but when the car is on the street it's under more of a load so you need more fuel.



Also, how high was your MAF voltage at the top of the pull? If it was anywhere near the max, then you could likely be pegging your MAF due to the colder air.

You're intake air on the dyno was likely warmer -- not only because of the general weather conditions, but also due to lack of circulation (especially if the doors are closed) -- the warmer air being less dense will register a lower voltage.
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