fbodysetc

iTrader: (5)

I just got done building a motor 4 my car but I have a small problem. The driver side plugs look fine but the passenger side foul out. Any ideas ? So far im going to check the wiring that goes to the coils any other ideas ? I didnt do a crankshaft relearn could this cause this ?? Thanks for any help, Nathan

HumpinSS

iTrader: (1)

Check for any exhaust leaks on that bank. Do you have access to a scanner like EFILive, Autotap, Ease, HPTuners?

jimmyblue

iTrader: (11)

Bankwise fouling - O2 sensors, power/ground feed
for coil racks / injectors? Seeing any codes?

fbodysetc

iTrader: (5)

I have hptuners. I checked the grounds and power to the coil everything checked out fine. Changed the o2s and no exhaust leaks either

jimmyblue

iTrader: (11)

Log the front O2 voltages, B1/B2 injector PW, STFT/LTFT and
see if there is anything you can dope out from that. Then
have a look at misfires-current PIDs for all 8 cylinders to see
if you have any clues there.