Has anyone had any experience with those two codes together? The 0420 (cat converter or O2 sensor) has been on and off for nearly a year -- but now the 0302 (cyl 2 misfire) has joined it with very brief (a few sec to mins) loss of power [not stopping]. Could it be cat converter blockage or water in the gas? Any thoughts would be appreciated. I'm new to the club but I have a '98 (bought new) and a '10 (bought last year) -- many miles in a CRV!