boise49ers
NAXJA Forum User
- Location
- Boise,Idaho
I have a new crate 4.0. 3k miles. I have a new K&N filter, Flow master muffler, free flow cat. I am running 31" tires with 3:55s and I'm only getting 12 miles to the gallon. The 31" tires were calibrated into the mileage figures.The EFI rail has no leaks and I don't smell fuel any where. I don't think my O2 sensor was replaced when I got the new motor. Does this sound like the culprit ? Some one please respond. I haven't had much luck with responses in the past.
Does any one have the same set up and what kind of mileage are you getting if so.
Thanks a Bunch for any help
1988 XJ Pioneer
Does any one have the same set up and what kind of mileage are you getting if so.
Thanks a Bunch for any help
1988 XJ Pioneer