Alright so i let the car sit overnight and it's cold in the garage (70F) and in key on mode it's still setting P0335 the same as before. Just tried flashing back to my initial "new" tune with only dwell changed. And it is NOT setting the P0335 code. So I've got 2 tunes where one is just fu...

Bumping this. I've been having this issue on my 04 RX-8 too. The P0335 is set and i can't clear it for good. I can key on, clear it. Scan, it's gone. Wait 5 seconds, it's back. And repeat. It just keeps coming back. Out of paranoia i reached the sensor with another OEM one with 0 change. The car dri...