D-paul, no where in my post did i sugget they were dead. i asked about his x pipe, and i said he could replace them (o2's) again if he wanted to, to double check.
I didn't say the tune was the cause, i stated he should revert back, to rule it out. software does strange things at times.
Also, he stated the issue is on BANK 1 ONLY, when he swapped the sensors, it fouled bank 1 again. it chases to bank 2 cause yes, the sensor is possibly dead, throwing a code.
Either way, doesn't matter anymore. He swapped some plugs and all monitors set, so unless he just changed the sensors AGAIN as i suggested, the sensors weren't "dead".
Either way, doesn't matter now.
To OP:
awesome, hope it stays fixed!
