Originally Posted by Raceghost

Just an observation I had today. I reflashed my ECU and pulled the fuse to reset the trims. I idled for 20 minutes, no LTFT, I drove for 20 min, no ltft stopped at lights, idled again for 20, no ltft. SHut the car off for about an hour. Fired it up, no ltft after 5 minutes, drove another 20, no ltft, shut car off again for about 30 minutes, started up, no ltft, drove for about ten, idled again for about 5, and finally there was ltft. The whole time I had STFT and LTFT MID, no low. Fluke situation, but it happened when I reflashed the ecu, it was the same rom/maps I was already running, and have flashed several times in the last month, first time LTFT low has done this. So all I am saying is try to reflash again, and idle, try it several times. If it still doesn't read, you might have an ecu issue.

Originally Posted by lancerrally45

So let me get this correct, for verification.

While idling for 20 mins, you had STFT oscillating and the LFTF Low never changed?

Originally Posted by foxbat

I swapped the ECU with an identical one, converted from a stock rom to a v7 SD rom, & now all the trims are working perfectly fine!
I'm going to calibrate the injectors a bit & then tune the car.