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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+/-10 is within normal parameters apparently

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.

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.

Your fuel trims are fine. Enjoy the car. :burnrubber: