Installed my TBE and its freakin awesome, i did the o2 fouler mod to it and the CEL stayed off for about 50 miles and cam eon, cleaerd it and iit just came onn agian. The code was for bank 1 sensor 2 LOW voltage, so does that mean the sensor has to be more exposed ot less exposed?

 

where is your sensor located? I have the Turbo XS TBE with the test pipe. I used the non foulers and have been CEL free for about 10 days. i have mine in the catback section after the test pipe.

 

Did you use two foulers? with just one my light came on again, after i used 2 and drilled out the inside one it worked fine.. try cleaning off the sensor VERY CAREFULLY with a towel and then put it back in there.. Should work dont know why it wouldnt..