duntov
NAXJA Forum User
- Location
- Las Vegas, NV
Would a old cat/O2 sensors cause poor mileage. I have a 98 with the 4.0 with 96,000 miles on it and I am getting around 12 mpg. Of course I have a 3" lift and 31s but I would figure it would get a little better than that.
Should I replace those parts? I may just go from the manifold back...
Should I replace those parts? I may just go from the manifold back...