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Jan 18, 2005 | 10:47 AM

#121

myjaycopuller

New User

Joined: Jun 2004

Posts: 18

Likes: 0

From: southeast Texas

Got Flashed last weekend!

Quote:

Originally Posted by Beachbumcook

The new flash may reduce your mileage... 21mpg on the highway is great. However, is that the overhead meter or your calculations?

Most people get around 16 - 18 on the highway with the new flashes (less with the older/newer flashes)... new one brought it back up sightly.

Personally, I like the new flash and get a true 17.4 on the highway in 15 degree weather driving 70 - 75mph and some intown and extended warm-ups in the AM due to weather.

Good luck, but I would get it down and let dealer try and fix the code, but yes, I would bet that your mileage may suffer???

Good luck,

Jeff

The 21 MPG was by my calc's minimally loaded, all highway from Houston to Little Rock. Still getting consistant 18's up and down the Houston freeways to & from work.

Got the latest flash (not sure of the code) last Saturday to remedy the turbo boost check engine code. Nothing negitive to note as of yet. It seems that the pedal may be a bit more responsive if any difference at all. I plan to fuel up this weekend and run a fresh tank full through to check MPG next week.

Jan 19, 2005 | 09:05 PM

#122

LaredoF350

Postmaster

Joined: Jan 2005

Posts: 3,461

Likes: 0

From: Saskatoon, SK

Quote:

Originally Posted by SBV45

That is the latest flash for the 03 6.0l with Torqushift non-Calif.

I also have an early 03 with that flash. Got it several weeks ago. I really like it. It is more like the original except a little louder but I don't really care about that.

The flash --> 3U7A 12A650 FTE is what was installed in my truck about 3 weeks ago. I had never been flashed on my '03 but the romping on a restart (truck cooled off some, but not completely) was getting ridiculous. The loss of the quiet idle doesn't bother me - I kind of like a bit of clatter. The tow/haul will have to be compared once I pull something heavy enough to tell. As far as mileage goes, what are you finding? Since flash, our temp has been very cold and with winter fuel, cold temps (as low as -40*C), and some extra idling, its been hard to compare mileage. My truck always had pretty good power and I don't think that changed. The glow plugs do not cycle as long (sometimes not at all) on a warm start as they did before flash.