well after the first two sensors that the dealer replaced i was still coming up with codes after many drive cycles, so i found out here that i should have had ALL 4 replaced, so i went to Atlantic British and bought two from them, so there are 2 OEM sensors, and 2 AB sensors in my exhaust. all 4 have been done within a month or so of each other, the last 2 were put in at the end onf january, on the passenger side, i had a mechanic do those, maybe they did something wrong......
this is really starting to give me a head ache with these codes coming up periodically

 

I did all 4 last month and one of them was faulty. I installed a new one and the codes disappeared. It's not common for them to fail that soon but everything can fail I guess.

Maybe others can give you some other places to look if that does not work. Just a thought did you check they were not loose?

 

When i take it back to the dealer i will have them check them all out, could be one is faulty, thanks for the tip.

 

Like I said it is not common and the guy at Atlantic British did not even believe me at first but it is worth it to keep an open mind I guess. Saved me a headache.

 

so how would i know if one is bad, if not two or all of them?

 

Well I got a code that said there was no life from the specific O2 sensor. In your case I would start with the rear driver side (PO137) sensor.

 

that code says sensor circuit low volts, what is that all about.... could it have anything to do with the ECU?
im dumbfounded here, the vehicle passed NYS inspection after sensors installed and a little ECU rewiring, now im getting the codes i had in the first place

 

You see that low voltage O2 fault code when you have bad O2 sensors. I think it means that the ECU sees the O2 sensor but it is faulty. That is opposed to the other O2 codes where the ECU does not recognize an O2 sensor is there.

I guess it could be a problem with the ECU but I would replace the O2 sensor that is throwing the code just to rule it out. Since they were just changed recently you should be able to do it in 5 minutes just get a $3 O2 wrench from harbor freight. The rear drivers side is easy to get to even.

 

alright, worth a shot to replace the "faulty" one first before taking it to the dealer...
again thanks for the tip(s)
now after doind this, am i to clear the code(s) and see if they come back on or do I drive cycle it until the codes clear by themselves?

 

Clear them and see if they come back.