SgtWookie,
Thanks for all your input. Very helpful!. I have some questions though. You mentioned that the ECU looks at the passes at 450mv, so what makes it see a lean or a rich mixture? The frequency of passes?
My car already has a Wideband O2 5 wire ( 2001 VW Passat) , what kind of circuit would it need to modify the AF ratio as seen by the ECU. The main signal wire has like 3V steady.
Thanks
Thanks for all your input. Very helpful!. I have some questions though. You mentioned that the ECU looks at the passes at 450mv, so what makes it see a lean or a rich mixture? The frequency of passes?
My car already has a Wideband O2 5 wire ( 2001 VW Passat) , what kind of circuit would it need to modify the AF ratio as seen by the ECU. The main signal wire has like 3V steady.
Thanks