Hey guys,
I have a 2001 chevy Duramax. All stock. Had FPRV replaced,six months ago, dealer reflashed computer and in town mileage went from 17 to 12.I have a hunch this had something to do with EMISSIONS UPDATE.
Can EFILIVE remove this crap so I can get mileage back?
What EFI demo should I download for my year truck ,and where can I find it to check it out??
sorry guys i think this should be in the diesel forum but i dont know how to move it.