: Bad mileage

07-29-11, 08:16 PM
Crank position variation. Can this cause bad gas mileage? Im getting 17.5 on the interstate based on my last calculation.

07-29-11, 09:32 PM
Have you checked the most common cause, FPR?

07-29-11, 10:01 PM
Good idea. I havnt

07-29-11, 10:47 PM
If I got that with my truck I'd be overjoyed. Definitely not what anyone would expect from a Northstar though-

07-30-11, 03:53 AM
Yeah. I was hoping at least low 20s. I think it's something simple. I think it could be the ckp variation still tho. Finding a mechanic who can, will, and has the tech 2 tool is a challenge. Dealerships don't want to touch since it's over 10 years old. :/