Do you guys think that a chip along with the use of a 75mm
Mass Air would increase the timing or lean the fuel mixture enough to cause the upstream o2 to fail? I ask because when I was running the chip my o2 would fail I would replace it and within 5000 miles it would fail again. I ran into another Houston CEG'r who said the chip was causing the o2 to fail, so I removed the chip about 5 months ago and no problems. Should I just send the chip back and get reprogramed or go with some type of piggyback system?
