I installed ERZ header and now cel is on when Iinstall the antifouler on which O2 sensor do i install it on the O2 on the one by where the manifold was or down under on the s-pipe or both would someone give me a hand with this one please thanks again.....

 

the one in the s-pipe.

 

Once you install it, you'll also have to get the code cleared with a scangauge. Although their not supposed to do it, I talked someone at AutoZone into erasing my CEL after i install the defouler.

 

thanks for the info installed and cleared cel so guess we will see.

 

all you need to do is disconnect the negative terminal to clear a code