I got an Accord EX 3.0 coupe with OBX exhaust and have a check engine light for the bank1 o2 sensor, code P0420.  Does this suggest a bad catalytic converter or a bad o2 sensor?  Also, does a high flow cat tend to trigger this code on this particular model/year?
Any help would be greatly appreciated.
I got an Accord EX 3.0 coupe with OBX exhaust and have a check engine light for the bank1 o2 sensor, code P0420.  Does this suggest a bad catalytic converter or a bad o2 sensor?  Also, does a high flow cat tend to trigger this code on this particular model/year?
Any help would be greatly appreciated.
BMW 1 series Coupe vs Porsche Cayman
BMW M3 vs Formula 1 Braking Test
Just thought I would share this lovely car:
