hello to all
I'm just finishing my swap with this combo
I sorted out a/c compressor, PWM fans, VATS delete...
but I'm stuck with way too rish LTFT and even with MAF unplugged.
I think it is something wierd with my calibration and FPCM DELETE.
I used anyway a FP sensor , but pump is standard walbro 255 with a regulator to 75 PSI
if I lower the PSI the system goes even richier at idle.
any good tips?
I read here and there but no good info yet.
engine is 100% STOCK oem, with new sensors (MAF and O2)
thank you so much!
L83 swap 2017.hpt