This is a discussion on 02 sensors????? within the Computer & Tuning forums, part of the LSx Technical Help Section category; i was checking on my 02s with my diablo at this time i uploaded the performance tune. the car didn't ...
10-08-2007, 06:57 PM #1
i was checking on my 02s with my diablo at this time i uploaded the performance tune. the car didn't run so great but my 02 readings were in the high 7's to low 8 sometimes droping to 5oomv and flating. my 02s don't which fast with the diablo but with my auto x ray scanner they do???? also with my 02s readings is it running lean? my plugs are white no tanish color? now with the diablo tune this will run really lean causing it run like shit???
10-08-2007, 10:29 PM #2
700-800 mv at WOT is lean, was that with or without the diablo tune installed? If it was with the diablo tune then what are your O2's running without it? The only time I've seen O2's flatline they were flatlining at 450mv. Did you try to change the fueling curve to richen the car up with the diablo? What mods do you have?
10-09-2007, 03:12 AM #3
lid catback and smooth bellow. this is with stock tune it runs like shit with the diablo tune.
10-09-2007, 07:26 AM #4
have you checked your fuel pressure at the rail? How many miles on your fuel filter? sounds like you have something going on.
10-09-2007, 07:52 AM #5
- Join Date
- Jul 2006
- Westminster/Sykesville, Maryland
- 2000 Trans Am
definently sounds like a fuel issue, i would change fuel filter if you havent already. And possible run some fuel injector cleaner though the motor. My buddy was having the same problem with his 01 ws6 on a stock tune.
10-09-2007, 01:12 PM #6
fuel pressure is fine my 02s flat line so i didnt think it was a fuel issue.
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