PCM Diagnostics & Tuning - HELP, with O2 sensors
08-11-2006, 03:13 PM
Hey guys I need your help, like many of you I got SES light on and found out it was caused by a bad o2 senors on the front passenger side, my question is do i replace both of the front sersors or both of the sensors on the passenger side, help please I need to pass my smog check.
08-11-2006, 03:46 PM
alright, what are the codes? then, what have you done to your car? then what was the last mod you did to your car before this problems?
DO NOT , PLEASE DO NOT BUY VETTE REAR OXYGEN SENSORS, its a waste of money and doesn't fix a damn thing
08-11-2006, 03:53 PM
The code will tell you which one it is. Post it if you have it, and any mods too...
08-11-2006, 04:06 PM
Its a 99 trans am that I just bought that is completley stock,I dont remembergetting a numerical codes the scanner stated it was bank 2 sensor 1, the reason im asking is because I know that other users had gotten a SES light after they replaced only 1 senors so im trying to avoid that and replace them in 2's but I dont know if I shoud do the 2 front ones or the 2 rights ones any idea ? Thanks for your replys.
08-11-2006, 04:14 PM
Bank 2, Sensor 1 is the precat (front) sensor on the passenger side. If that was the only code just replace/check the wiring on that sensor.
08-11-2006, 04:44 PM
thanks a lot im going to replace the sensor and hopefully that pesky SES light stays off.
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