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Old 05-25-2017, 11:41 AM   #1
illxkoncept
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LTFT in the negatives

I recently notice my ltft was at -10 when idling. I'm new to this whole tuning thing.

My current setup is:
Perrin inlet
K&n drop in
Borla Uel header

I'm running the stage 2 uel 91 tune for the oft

My afr is 14 at idle and drops to 11ish WOT. What could be causing the low LTFT?


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Old 05-25-2017, 11:58 AM   #2
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+/-10 is within normal parameters apparently
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Old 05-25-2017, 10:56 PM   #3
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http://www.ft86club.com/forums/showthread.php?t=64790

That thread has a lot of info about MAF scaling if you are still concerned about it. I recommend that as your first stop. I wouldn't be too concerned at idle as the ECU takes care of that pretty well.
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Old 05-25-2017, 11:58 PM   #4
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Check for leaks by the intake and header and run better fuel. This car is very sensitive to lower quality fuels. Lower quality meaning a lesser brand with "91" is not the same as a better brand. Almost like cheap beer.
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Old 05-26-2017, 03:03 PM   #5
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Your fuel trims are fine. Enjoy the car.
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