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Old 12-02-2011, 07:33 AM   #26 (permalink)
JasonG
Master EcoModder
 
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Join Date: May 2009
Location: Charlotte NC / York SC
Posts: 726

05 DMax - '05 Chevrolet 2500HD
90 day: 18.48 mpg (US)
Thanks: 106
Thanked 54 Times in 50 Posts
I believe you need to adjust Adaptation block 3.
Bump it up 900-1000 so your reported quantity is at or just below 370.
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I can't understand why my MPG's are so low..........
21,000lb, 41' Toy Haulers are rough on FE!
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