mileage difference

[bikerfuzz]

well she worked great when I first put it in. I did notice a big difference.Having said that I will try cleaning the throttle body, and m.a.f.s. and re check.when it goes in for the 100k im gonna change out the o2 sensor and fuel filter, That will be in about a month. Just seems to be such a change. BUT Ill LET YOU KNOW. Thanks.
bobby

[ticopowell]

That sounds like a good plan , Good luck and i hope it fixed your problem

[bikerfuzz]

Thank you sir!! I will I promise let you know

[Longshot270]

So you got 23 mpg city with the tow tune while the performance tune got 13 under the same or similar conditions on paper?

If cleaning everything doesn't help then you might try changing back to stock for a few days then switching back to the performance tune.

[bikerfuzz]

well That should actually read 12 mpg. But yea . Yesterday i did a r/t of 75 miles each way about average speed of 65 and got 19mpg. in the stock tow program. But the change from the custom 87 to the stock tow 87 got me almost 2mpg's more!!.So now i show 15m.p.g's average around the city. up from 12-13. and better throttle response. may be it compensates for something?

[ticopowell]

just a question for ya, what are you using to calculate mileage? because the gryphon for me is usually a few mpg's higher than what I actually get. since it is a calculation derived from the MAF and O2 sensors, it can't be 100% accurate. I usually try and calculate it by hand to see if there are any reasonable changes in mileage, but that's just me.

[shadowrider]

My gas mileage was horrible on the 87 octane tow tune compared to the 93 octane performance tune. I actually save money by running the 93 tune.