dealer says I need rapid response 09-086

[Wygate]

Had the flash done today, have not driven too far yet but seems to be doing better on fuel. The mileage read now responds quickly (almost instant), vice the 15 or 20 miles it was taking to move one tenth. Dont notice much else yet.

 

[firemansdiesel]

I've noticed before when a ECM is updated, people claim lower MPG.



Newt

I can verify, atleast w/ my truck. A long round trip to Glamis this past weekend. The latest flash for '09 (BB) made my mileage drop 2 mpg.



On the other hand, it is performing flawless and no complaints on that. Oo.