- Joined
- Jan 2, 2001
- Messages
- 8,012
- Reaction score
- 15
- Points
- 38
- Age
- 40
- Location
- Lancaster, Ohio
- Vehicle Year
- 2016
- Make / Model
- Chevy 3500HD
- Engine Type
- V8
- Engine Size
- 6.6L
- Transmission
- Automatic
- 2WD / 4WD
- 4WD
- Total Lift
- 5"
- Tire Size
- 35"
Have you done any work on it lately? How is the wiring harness that the O2 plugs into. Sounds like the new sensor made little difference. Being so old a car, even if the current O2 sensor was still functioning a NEW one would surely make some difference. I would definatly check the sensor wiring.