tpy1879

I have a P0420 problem, I replaced my O2 sensor but now I have to replace the cat. Could I just replace the cat with a resonator and will this pass emissions? Also will I need to reset the ECU and how can that be done? Any knowledge would be greatly appreciated, Thanks

Scottwax

Replace the cat, use a spark plug non-fouler to extend the O2 sensor out of direct exhaust flow (this sometimes works) or use an O2 sim.

Eaglesfan9106

To reset the ecu disconnect the negative terminal on the Battery for a couple minutes

Steven Bell

iTrader: (2)

Tpy, you don't need to start a 2nd thread on the same subject. Your other thread has been closed.