and also it had an aftermarket raido in it when i got it and no i didnt know that about the 02 what wire controls the signal?

 

There is no wire in the radio that controls the o2 signal... He was being a funny guy lol

 

Yeah I was just being a funny guy.. there is nothing about the radio or its harness that is going to mess up the 02 sensor; even if you crossed a wire you would blow the fuse for the Radio.. it would not mess with 02's..

 

UPDATE!! so i replaced the upstream 02 today and the check engine light went off for a while and was running great then i went to walmart and the light popped back on and started running like crap again i haven had a chance to scan it yet but im starting to think the cat is clogged because it only runs like crap when it warms up any ideas???

 

Check the codes, let us know.

 

ok will do

 

I think the truck hates wal mart....lol...

 

i agree but walmart is the **** lol

 

What brand is the sensor? Where did you buy it?

 

it is a bosch i got it from advance auto parts....