Is there something else that would cause the PCM to no show data from the O2? maybe another fault or fuse or something?
Right now, my O2 sensor is not showing when scanning with either DHP or Aeroforce. my LTFT's and STFT are maxed. there has been an intermittent problem with the fuel trims climbing and i thought it was a vac leak. IAC's are good and my MAP is at about 30-35 kpa. so deff am seeing vac.
yesterday is when the problem got worse. before my trims would climb to like 10-11 but yesterday after a tune i saw it peg. i figured it was the tune so i flashed my old tune back in and it seemed fine at first. so i drove home. well during that drive the trims maxed out again. it would idle rough. that is when i went thru all the data and found that the O2 was showing 0 mv. the sensor is new prob about 2-3 months old. i removed my O2 extension and checked the wires and they all show good on my multi meter so that can be ruled out. my next action was to check the wires for the O2 in the harness. i pulled and check all the way to the passenger side strut tower. as when i was checking and looking for vac leaks yesterday i undid the harness and moved it... the wires looked all good.
what else would cause the PCM to no show data from the O2? maybe another fault or fuse or something?