Quote Originally Posted by dereksi
Just cause he reset it doesnt mean its fixed...and no its gonna "hurt" the car but you need to get it fixed. And a question what did you cut and splice? The new connecter on the o2 or the wiring harness side?
...u could run rich and burn up the cat or run lean as hell and burn up ur motor...an o2 sensor needs to cycle 8 times in 10 seconds between 0 and 1 volt while a a/f sensor stays constant at 3.3v, i think that could cause a problem. not to mention they may be more susceptible to rfi now that the wires have been tampered with. did u say u had one in for a year and it never gave u a problem? if thats so then they might have given u the right part but the heated circuit might have gone bad possibly due splicing wires. an o2 sensor needs to get to like 800 degrees fahrenheit before it goes into closed loop so sometiems they put a little heater core in there to speed up the time it takes for it to heat up which is the code u threw. either way, i think it was well stated that u should never cut and splice that stuff and parts guys are dumbfucks...right now i cant get this car done at work bc i have been sent the wrong calipers 3 times good luck though