Does anyone make a post cat O2 simulator or have schematics to build one?? I want to delete these O2 sensors and am not sure if I leave them connected(online) and let them sniff outside air that the values generated by these sensors will be acceptable to the values programed into the ECU...i.e. the outside air may be to oxygen rich thereby generating a signal that is unacceptable which in turn triggers a CEL. TIA
George, My car still has the cats. I actually saw a reference to this company on the AudiWorld S4 forums.