I went to get the State emissions test on Monday and failed because all my systems were N/A...(that's strange). So I set the car back to stock and changed the gear ratio to 4.10 and turned off the speed limiter the drove for a couple days and the Marauder threw 2 codes (P0133 & P0153).
Oxygen circuit slow response sensors 1 on banks 1 and 2. I cleaned the MAF, is there anything else to do? Also my scanner said they were non-MIL...what does that translate to?