Well part of my hesitation is a bad 02 sensor along with the opti but the 02 sensor was just replaced about 1month ago when i did my headers. Any idea what would make it go bad so quick?

 

did it throw any codes just curious because i think mines are bad

 

if it is a bosch o2 sensor i wouldnt be surprised......was it an ac delco? or bosch? or other?

 

How do you know its "bad"? Codes???

 

it was an ac delco expensive for 2 of them and the shop checked the codes and found out

 

so did the ses light come on is what i am asking

 

it would come on for a min or 2 then go off

 

because i am running way rich and it doesnt start acting up till it gets to operating temp so i am figuring mines are going bad

 

How do you know its the O2 sensor thats bad?

You might be burning an O2 sensor wire or your MAF might be bad and telling the PCM to dump too much fuel into the cylinder.

 

absolutely fine, A-OK.

 

sorry the shop didnt get it from reading the codes he put his scanner on it. The passenger side 02 was fine it would fluctuate with the rpm's where as the drivers side was stuck at like 452-453 the whole time so i'm going to replace my 02 and hope this solves the rest of my problems

 

do you have heated o2's?...4 wire or 1 wire version?...i have heard of some people having trouble with the non-heated ones after long tube install b/c they were too far away to get an accurate reading...

 

i have the 4 wire

 

Swtich the O2 sensors from side-to-side. If the problem follows the O2 sensor, the sensor is faulty. If the problem stays on the same side, its a wiring problem. I'd try that before dumping money into a new sensor. Being stuck at 450mV means there is no signal from the sensor... all the PCM is seeing is its own bias voltage. Could be a faulty sensor, could be a faulty wire.