Some of you know that I install a custom made 4-1 Header and an high cat, but the CEL light came on. The two Oxygen sensors are before the cat and I dont want to make a new hole to install the second O2 after the cat.
I remember that somebody post a solution for this problem but I cant find it. I just know that if I replace the second O2 with one of other car (some Pontiac or Chevrolet) will turn off the CEL.

 

The solution is not to do anything half-ass. Get a O2 bung welded on and extend the wires.

 

Yeah, my shop had reversed the order (duhh) and I fixed it myself. Trust me it will run alot better when you put them on right. The ecu is screwing everything up right now.