Well Stou, I fixed the wires on the O2 cheater I made, and it has been a whole week and no CEL. It usually take about 2 days for the CEL to come back on, but nada. I made it just like the one from the ZX2 thing you posted. I had made it about 2 months ago but when I was installing it the wiring must have come loose. I took it off and two of the wires were off. I fixed it and now there is no CEL. Did your check valve thing work out? I'm getting really close to completing the turbo, I need your expertise on that. Spoolin just posted that his check valves arent working. What's the deal?