mmacalus
June 9th, 2015, 03:03
Does anyone know if the rs6 only monitors the pre cat sensors?
lswing
June 9th, 2015, 03:12
Pre-cat O2's send fueling info back to the ECU and must be left in place. Post-cat downstream O2's are for emissions only, and can be removed and coded out if you don't have to pass emissions.