New ECM who do I send it to?
 

I have a stock 2009 crew 4x4 with the addition of 265 tires.
I just bought a ECM to have reprogramed for better mileage and power, who should I send it to?
55,000 miles.
Thanks
Coop45

here are a few

www.atptrucks.com

Fleece Performance

Home page

https://syntheticmotorsports.com/ind...=15&chapter=10

Ok, guys, just put in the duramileage CPM, and as of right now, I am impressed!
The low end power is smooth and strong! The off idle is much more responsive.
Mileage from the DICS before was 19-20 on the freeway flat ground for 30 miles.
Same exact route yesterday was 24-28! Mpg.
This was at 70mph rpm was about 17-1800.
The truck feels like it is coasting down the freeway at 70mph?
Truck runs much smoother? I like it very much so far.
Heading to flaming gorge towing my travel trailer and atv trailer, loaded!
I will give you all the hand calculated numbers when I get back.
But as of right now, the fuel needle is not moving as fast to the empty side!
And I like that!
Coop45

that is great.

please get us the hand calc MPG as the DIC will be more off when the fuel maps get tuned and usually error high.

Why would the DIC be off anymore?
The fuel needle is slowed down then also!! hehe!
Coop45

Ok, just got back from my trip to Flaming Gorge!
Last year 8.0mpg. This year, with much more power! 9.8mpg, DIC said 10.0.
So far around town and back and forth to work 30 miles freeway, and 8 miles city driving per day and one week average = before 17.0 to 17.5mpg average per week, and now 21.0 to 22.0 mpg average per week!.
So I would say for the amount of power and drivability and fuel mileage savings, it was well worth it, I won't be going back to the stock ECM.

Coop45

Thanks for that input Coop45. Good to know

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Hey Coop45,
Do you have any other mods besides the duramilage tuned ECM? Where did you get your extra ECM?
DB