this is what the guy read at autozone when i got fed up with the service engine light.... eff that light

 

welcome to the club brotha =/ could be your lower 02 sensor or your cat. good luck buddy

 

there is another 02 censor..... beside the one on the dumb cat under my hood
? time to bust out the manual

 

yep!
there's a sensor over your header (located right in front of the engine)
then the second one is on your cat underneath your car. I would try fixing that first. You can get a universal o2 sensor on ebay for like 25 bucks. Then just search around on here, or ask me and I can dig up the wiring diagrams for you.

 

gotcha im gona give it a go

 

What modification did you install?

 

what mod dident i install? my car is hibernating now ... i bought an aluminium radiator from ebay and they sent me the wrong one and now it sits till this next wensday but im going to go ahead and change the 02 censors while it sits... might as well just change both of them and another question if i change the head will that effect my 02's or should i wait to change them after i get a new header