I'm going to do a little mod to my car tonight and just wanted to see if anyone else has done this. I like the idea of the blue wire hack because I currently don't have a A/F gauge. The only problem is on the B16 it uses the VMT wire. If I have this wire disconnected I get a CEL when I'm in really high RPMs. So my idea was to make a switch, and switch between the O2 Sensor and the ECU VMT wire. This way I could switch it over, check out my O2 readings, and then switch it back and never throw CELs.