12-20-2020, 09:46 PM
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#2
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The Dictater
Join Date: Apr 2017
Drives: '13 Red Scion FRS
Location: MD, USA
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Quote:
Originally Posted by dholloway543
Back 3 months ago I zeroed out all of my fuel trims buy adjusting the MAF sensor and they stayed zero. Now 3 months later I have all positive fuel trims some up to 9%. The only thing that has changed is the air filter and the temperature. Do you think that could be the variable that changed or is it a sign of something else.
Ex. the combined fuel trim at 600rpm 0.15 engine load is at +8.1%
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What tune are you using?
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