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

ecm flash

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Old Oct 14, 2007 | 09:24 PM
  #1  
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From: peculiar,MO
ecm flash

when the dealer reflashes your computer are they suppose to put a sticker under the hood to say that they did and if not how do you check
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Old Oct 14, 2007 | 09:29 PM
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From: St Augustine, FL
Just had some kind of reflash on my 06 last week. It DOES have a sticker on the underside of the hood and the following number: PN#35325553AS Runs better than ever now. No more smoke on cold start, idles smoother, runs LOTS better, and even the shift points are better.
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Old Oct 14, 2007 | 09:39 PM
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From: Indiana
Sticker is supposed to be there, but really, no one looks for it. I ALWAYS check the ECM number with the DRB or StarScan to make sure. The sticker is a waste of time in my opinion. Just ask J-Body, I think! He's still in the slammer for not putting one on! LOL
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Old Oct 15, 2007 | 08:29 AM
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From: peculiar,MO
well the truck does seem to run quieter at idle but there is really no way off me knowing and also i got a c-code a7 and aa right after i left but one of them is a (pcm messeges not recieved) thats what makes me wonder
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Old Oct 15, 2007 | 08:49 AM
  #5  
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From: Indiana
Yes, that happens when the ecm gets flashed. It takes a little while for the code to reset. Since it doesn't set a light or anything, most techs don't bother to reset it.
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Old Oct 15, 2007 | 08:54 AM
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From: peculiar,MO
right on thanks man
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Old Oct 15, 2007 | 10:07 AM
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From: baltimore, md.
wish you could reflash them yourself...
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