Quote:
Originally Posted by mtnbike2go
No the car is not tuned. Only mods are a CAI that’s been on since new. I added the phasetek air scoop last year and that’s when the issues started. Replaced the 02 sensors already that didn’t change anything even though that’s the codes are for. My buddy who is a mechanic reset the fuel trims after my o2 sensors were installed and now LTFT are showing -6 and the freeze frame data for those codes are showing +29 always around 1400 to 1600 rpm it will trip but it’s intermittent it may trip in 10 miles or 500 miles.
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How were your fuel trims reset ...by a fuse pull or via a device? If via a device it updated the permanent ecu count by 1 and voided any extended power train warranty you might have. Either way you should get a tune as you’re running really lean with a +29 ST reading and running that lean for an extended period of time is NOT good for your engine.