3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

Reflash/Power Loss?

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Old 04-03-2006, 07:24 PM
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Reflash/Power Loss?

Ok.I got my reflash today,& didn't have the recall done.But I think I may have lost some top end power.My boost seems to have dropped off a few pounds.Any body else have this happen?Mileage did come up a bunch.
Old 04-03-2006, 09:12 PM
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More info.

Allright.Maybe everyone needs some more info,before I get a reply.I went in for the white smoke @ start reflash.I requested the E 17 recall NOT be installed,which my dealer had no problem with.I have only 25 miles sinse the reflash,& I noted these changes.My mileage has jumped up from about 13.5-15.5 mpg. to about 18mpg.I had 22 for a little while on the high way.But I also notised that my boost at full throttle was down about 2 psi. & as a result,I think I may have lost a little power.Any one?
Old 04-03-2006, 10:03 PM
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Can't help ya with the boost #'s, but if I lost 2psi. of top end boost and gained between 5 and 7 mpg, I'd be more than okay with that.
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