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Old 02-10-2009, 05:10 PM
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New pcm now bad mpg

I had to get a new pcm.Now my mpg is awful.Anything I can check,Pcm is napa brand.
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Old 02-11-2009, 11:44 AM
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Quote:
Originally Posted by t8ter View Post
I had to get a new pcm.Now my mpg is awful.Anything I can check,Pcm is napa brand.
Go to Ford for a reflash? Anyway, you get a .
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Old 02-11-2009, 01:32 PM
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Milage hand calculated over several tanks?
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Old 02-11-2009, 03:53 PM
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Originally Posted by Southpaw View Post
Milage hand calculated over several tanks?
I'm goig to check it for a few more tanks.Yes its hand calculated.The new pcm fixed the speedo but not the milage.I'm showing a tenth off according to mile markers.I pull alot in the north ga mnts.I'd say its a heavy right foot.
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