I agree - I think I killed one of my cats when I swapped in my bigger injectors, then drove 600 miles without setting the S-AFC (read - ran rich the whole way). Now I get a Cat Eff code every time I take a long highway drive or go to the drag strip, and my Cat Eff Monitor never completes (unless it fails and throws a code). No way I replace that manifold right now - too much $$$ and effort, and if I'm replacing manifolds it is going to be with headers.
I'm going to follow
THIS wepage's schematic for DIY MIL Eliminator. I happen to have an extra downstream O2 sitting around to do it on.
