ECM Strategy Roll Back MPG Test - Ford Powerstroke Diesel Forum

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post #1 of 94 Old 06-15-2010, 05:40 PM Thread Starter
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ECM Strategy Roll Back MPG Test

today i had my ECM roled back to VXCF4 from VXCF9. i used to get 18-20mpg unloaded before the dealer flashed it to VXCF9. While i had the VXCF9 i would only get 15 -16mpg if i was lucky. i filled the truck up with fuel today and will post mpg log as i go. i esed to get the best mpg when i would run the SCT's canned STREET tune, so that is what i am going to start with. feel free to ask any questions i am trying to get back my mpg that the dealer took away overnight.

Truck Set UP:
-2005 F250 4x4 Super Cab long Bed
-Six Speed
-3.73 rear end
-Leveling kit in front with 1 ton coils (3.5in lift)
-rear add a leaf ( 1.5in lift)
-33.5 in allterain tires on 18 in factory rims
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coming out infront of rear tire
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-SCT SF3 with Custom Tunes & Canned Tunes
-Amsoil Bypass oil Kit
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-True Flow XDI intake
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post #2 of 94 Old 06-15-2010, 05:51 PM
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Subscribing...also running new strategy with low f/e.

Last edited by Earl H; 06-16-2010 at 01:30 AM.
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post #3 of 94 Old 06-15-2010, 05:58 PM
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This might get interesting. I didn't know it could be rolled back. Good to know though.
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post #4 of 94 Old 06-15-2010, 05:58 PM
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Subscribing. Same strategy here. Same issue.

-Aaron

2006 F350 XL 6.0L PSD
FX4-SRW regular cab
6 speed manual
SCT X3 w/custom tunes
FCDP coolant filter
Edge Insight CS
Thanks to Adam @ FCDP!!!
http://www.firstcoastdieselperformance.com/
much more to come!!

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post #5 of 94 Old 06-15-2010, 06:42 PM
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post #6 of 94 Old 06-15-2010, 07:33 PM
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post #7 of 94 Old 06-16-2010, 02:57 AM
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Subscribing as well. I still have VXCF4 and was debating getting the updated flash but seeing the fuel economy issues it's causing I think I might just stay where I am...

David
2012 CCSB SRW FX4
2.5" Level, Amp Steps
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post #8 of 94 Old 06-16-2010, 06:22 AM
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How did you roll back you flash if you don't mind me asking? From what I have read ford can only update forward.

Randy
2006 f250 4x4
crewcab shortbed
lariat auto
Some tuning, gauges and other assorted non factory dodads
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post #9 of 94 Old 06-16-2010, 06:26 AM
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Quote:
Originally Posted by Lubbockguy1979 View Post
How did you roll back you flash if you don't mind me asking? From what I have read ford can only update forward.
No they can go backwards as well. They have to get the as built data from ford and upload it. Its a pain in the *** but I can be done

Email: Dave@powerstroke.org
2011 F150 Ecoboost Crew cab lariat. Custom tunes from KEM and 5Star, and Unleashed
2012 F150 Crew Cab Ecoboost stock for now-Totaled March 12 2015
2006 F250 ECSB Lariat 4x4

Leveling kit, 315/70/17 Kelly TSRs on Method race wheels
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post #10 of 94 Old 06-16-2010, 08:41 AM
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If I had my rig flashed in Feb which strategy will I most likely have since I am like the next guy and would like to have the best mileage possible......sorry to hijack......its sorta on topic


2003 F350 6.0 4x4 Crewcab Longbed SRW w/X Code Front Springs- 265/75R16's on it now. Still got the 285 retreads in the shed though.
Future modifications: Edge Insight CS, SCT X3 with Custom Tunes

-SOLD-
1994 F350 7.3 Banks Turbo IDI 4x4 Crewcab Longbed-Miss you old girl
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