So, I've been getting this code for awhile now, and I just clear it out with my diablo and it goes away for about a month before it pops up again. It's finally getting to the point of being annoying that I want to do something about it. So, share your wisdom! I'm fairly certain Bill will chime in pretty fast and set me on the right track From what I've read up on it's something to do with an O2 sensor and alot of recommendations are to check plug/pins/etc... But, doesn't really specify which side of the exhaust, (left/right) to check.