MPG Update (ECM flash)
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From: Pocatello, Idaho
The one thing you can try, is every time the dealer reflashes your ecm. They are supposed to put a sticker on the cross member over the radiator with the reflash number. You mite want to lift the hood and see if it is there.
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From: So. Cal.
mileage improvement?!
Originally Posted by WACTD
...~2400 miles so far.
Cheers
Mike
###
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From: Spokane WA
As promised, here is the TSB information...
Here's the sticker that appeared under my hood.
Note that they refer to the reflashed component as the "PCM", not the "ECM". The service technician used "PCM" when we spoke about it but I just brushed it aside as a slip of his tongue. Now, though, I'm wondering if there really is a separate "Power Control Module" like he said.
As you can see, the TSB is 18-05-06. Anyone have the text associated with this TSB?
Note that they refer to the reflashed component as the "PCM", not the "ECM". The service technician used "PCM" when we spoke about it but I just brushed it aside as a slip of his tongue. Now, though, I'm wondering if there really is a separate "Power Control Module" like he said.
As you can see, the TSB is 18-05-06. Anyone have the text associated with this TSB?
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From: Oregon
Originally Posted by xyzer
WACTD, what code did you get for the CEL? I had a CEL at 250 mi. through a P0514 Battery tempeture rationality.......they flashed it with TSB 18-05-06.....there was no mention of a milage fix....but lot of changes are made with no mention of why.....I'm still running on the last fillup....the overhead was off about 2mpg to the good...always a let down when I hand calced it. Maybe the MPG will increase to correct the error....wishfull thikin...lol. It really needs a good pull!
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From: Spokane WA
Thanks for finding that. What does "MIL" stand for? Presumably "M. I. Light", like "Check Engine Light", but what does the MI mean?
Also, nothing on that list of symptoms seems like it would affect MPG. I suspect the firmware rolls up all prior firmware upgrades, so there's more included that just the list this TSB mentions.
Also, nothing on that list of symptoms seems like it would affect MPG. I suspect the firmware rolls up all prior firmware upgrades, so there's more included that just the list this TSB mentions.
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From: Bozeman, MT
Could i just take my truck into my local dealership and ask them to reflash it or do you have to have a reason for them to reflash it?? I went through this whole reflashing thing with my last ford, but it was always in an attempt to fix the POS. Mileage here has only been about 13 once since new (now 3k on it) and starts funny once warm, heard the reflash may help with that issue as well??
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From: Spokane WA
I'll bet if you complain of a few engine issues, they'll reflash it by default in the hopes it will "improve things". Reflash costs nothing but a little time, so it's an easy thing for the dealer to try.
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