So my CEL came on today and so I read the code and its a 41 which is primary oxygen sensor..just wanting to know..is that the O2 sensor on the exhaust? im pretty sure it is i just wanted to make sure..thanks

 

If you have an LX model, the O2 sensor should be in the exhaust manifold, located at the front of the engine, within easy reach. (I am not familiar with the EX model.)

 

Well mines an ex and its definently not on the exhaust manifold...the only one I can find is the one on near the catlyic converter...I dont know why all the sudden I need a new one..the only thing ive done is touched it today

 

they die after time... replace it.. this should clear the code.. if it doesnt or the CEL comes back shortly after its replaced the next thing to do is the MAP sensor in that plastic box on the firewall.

 

thanks for the info..I know they die after time..but i figured it could have messed something up when i brushed up against it or something..im gonna check it tomorrow and make sure the plug didnt somehow come undone

 

Primary= Upper, Which should be located in the header. Secondary= Lower, Which should be located in the catalytic converter. Primary will run you about $160, Lower will run you around $90-$100.

 

And no you cant mess them up by "brushing up against it today", Unless by "brushed" you mean bashed it with something...

 

Do you live in the south? I am not sure if that sensor is in a closed environment but three poeple I know through random associations have had to replace theirs this month( to the tune of $400). Is is possible the huge amounts of pollen combined with an older car is the culprit?

 

nope, but warmer air, and higher carbon count caused by it does. O2 sensors go out this time of year because of that, they were already on their last leg.