Join Date: Oct 2001
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Re: 4.2 question
The YJ in Nuttered. It did get 5mpg and it was all you could to to keep it running. there was a lot of inconsistancies at idle as well. Now it get 12mpg and runs better than ever. (with exeption of a bad choke). We also do not smog testing.
I installed a new CAT and it does not spurt out foul smelling exhaust. I also do not have raw gas smell. This is hands down the best imporvment I have done to the YJ. Now it just needs something besides that Carter carb in the intake....