p2262 lost 1-2 mpg

lilbum69 · 11-06-2009, 09:46 PM

i think there was a post on this but i cant find it any more.....
9-10-2009 i got a p2262 with 12k miles. the dealer gave it the latest flash and now i have lost 1 1/2 to 2 mpg. has any one else had this problem. the dealer said the flash didnt cause this, so iam not sure what to think???
2007.5 auto quad cab 4x4.

DHuffman · 11-07-2009, 01:42 PM

Are you basing your mpg loss on hand calculations or the overhead computer?

lilbum69 · 11-07-2009, 10:11 PM

iam loosing it on the overhead and hand calculations, also the engine seems a little more sluggish......

S.Morris · 11-08-2009, 10:18 PM

Not sure where you are from............If in the north...could be winter fuel.

SteveOsborn · 11-10-2009, 04:04 PM

I feel I have had the same issue. Did exactly what u say. I am now convinced that the programming has something to do with it. Hopefully a diesel tech on here can shed some light on the answer?

lilbum69 · 11-10-2009, 09:04 PM

that would be great steve, iam looking forward to it. its not winter fuel i know that......

HBarlow · 11-11-2009, 01:11 PM

One or more of our TDR member/Dodge-Cummins techs have already stated on more than one occasion that the latest reflashes do not reduce power, performance, or fuel mileage. I don't see any reason they would lie to us.

I had a requested, voluntary reflash done on my truck about three months ago and noticed no changes in driving or economy.

lilbum69 · 11-14-2009, 10:32 AM

well a thousand miles later after getting the newest flash for p2262 on 9-10-2009, p2262 is back, going to the dealer on monday. wonder what they will do now????

Bob4x4 · 11-14-2009, 03:09 PM

There is now a test that runs with the scanner when the 2262 is present.The result will be one of the following.Update software only,clean turbo,replace turbo or a combination there of.
The shop should verify all the system is working correctly to prevent reoccurance.

1Nebel0 · 11-16-2009, 07:22 AM

Well, I have not driven my truck for over a month as I have had three Kidney stone operations and still need at least one more scheduled for Dec 7...with that said, I drove my 2007.5 dually from Nor Cal to South Cal yesterday for a total of around 1100 miles in one day. I have not had time to put the Edge back in since my truck got a new turbo and reflash. The overhead says that I was getting 18-19 miles per gallon.. I never did hand check it as I have two stents in you know where, and when I stopped(often) I had to run to the bathroom.. The truck ran great and with the new turbo, it doesn't buck when you have the exhaust break on and it has full power.. I have my fingers crossed that all will be well from here on out. Turbo went out at !6,000 miles..truck is only used to pull my various boats as I have other daily drivers. Missed the Edge for the turbo timer as well as the Active Regen indication. The trip was for not as the boat I went to buy had a rotted transom...$160 in fuel and 12 hours on the road...Oh well, the truck has never had a trip like that since I bought it with 9,800 miles on it so I will chalk it up to a day in my truck along with the radio blasting with sat radio...