Strategy VXCF9H7 - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 10 (permalink) Old 02-28-2014, 08:25 PM Thread Starter
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Strategy VXCF9H7

I'm getting new tunes and my truck has a strategy VXCF9H7. The tuner has mentioned it's not a common strategy for a F250-350. Mine is an F350. Anyone know what this strategy means, how is it different? Thanks

2015 F350 Platinum, Crew Cab, Long Bed, 3.55, FX4, B&W Turnover Ball, Firestone Riderites w/ compressor
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post #2 of 10 (permalink) Old 03-01-2014, 04:53 AM
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It is the latest strategy I believe.

Many people say that it has been de-tuned with this strategy (less power, less fuel economy)

Mark
06 F250 CC SB FX4 Lariat;ARP studs;OEM gaskets;Banks exhaust;DynaTrac Ball joints;Coolant filter;High-Idle mod;RACCCV6000;JimmiJammers;Ravelco;SynchroMax xfer case;Fumoto valve;Harpooned;CPOhighwayProducts toolbox;tracrac;Fox Weatherboots;Wet Okole Seat Covers;BriteBox;Re-flashed;Quadzilla Recon XZT Fuel Press;Blue FPR spring;DashDAQ;PHP FICM;RiffRaff boots;DCPower270AXP;PowerInverter;Rancho7000's;BPD EGR cooler;One-piece HPOP fitting;D-plugs&standpipes;BPD BilletWaterPump;SCT w/ Matts SRL+;ELC Ultra;DuraTracs
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post #3 of 10 (permalink) Old 03-01-2014, 02:59 PM Thread Starter
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Does a custom tune use that strategy or can they use which ever one they prefer as you are "flashing" the ECM?

2015 F350 Platinum, Crew Cab, Long Bed, 3.55, FX4, B&W Turnover Ball, Firestone Riderites w/ compressor
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post #4 of 10 (permalink) Old 03-01-2014, 04:39 PM
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Custom tunes do not completely re-write the strategy. They only change part of the programming. That is whyt a few places offer the ability to load an older strategy before loading the custom tunes. Supposedly you get better performance and fuel economy by doing that.

Mark
06 F250 CC SB FX4 Lariat;ARP studs;OEM gaskets;Banks exhaust;DynaTrac Ball joints;Coolant filter;High-Idle mod;RACCCV6000;JimmiJammers;Ravelco;SynchroMax xfer case;Fumoto valve;Harpooned;CPOhighwayProducts toolbox;tracrac;Fox Weatherboots;Wet Okole Seat Covers;BriteBox;Re-flashed;Quadzilla Recon XZT Fuel Press;Blue FPR spring;DashDAQ;PHP FICM;RiffRaff boots;DCPower270AXP;PowerInverter;Rancho7000's;BPD EGR cooler;One-piece HPOP fitting;D-plugs&standpipes;BPD BilletWaterPump;SCT w/ Matts SRL+;ELC Ultra;DuraTracs
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post #5 of 10 (permalink) Old 03-01-2014, 05:33 PM
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Your best bet is to roll back the strategy and stay clear of the dealer from that point forward. You can actually roll back the ECM and the FICM. Places like PHP have pretty muchch mastered the art of rollback, and they can guide you to an optimal strategy.

I'm in the opposite situation, needing to find a newer model ECM and IDM for my Early-'99. Although I did a thorough table by table update of my strategy compared to a 2003 model and it's awesome. The same could be done with your strategy, but if both the ECM and FICM are late strategies, the rollback is best.

The Current Truck (Oct-2013 to Present):
1999 (Early) F-350 Lariat, CCLB, SRW, Black/Tan

7.3L Powerstroke, 4R100, 4x4, 3.73, 37x13.50-18s, '05 Axle Swap, 6" Fabtech lift, GTP38 "D66" turbo upgrade, SCT 4-position chip with custom tuning by me, Straight Piped 4" down pipe through 5" dual stacks, N-Fab full length triple steps, Pro-Tech cab guard and tool box, louvered 5th wheel gate, Hella 500 Fog and Driving lamps, much more to come...
The one I'll miss, (Mar-2009 to Jan-2014):
2000 Excursion XLT 4x4

6.8L V-10, 4R100, 4.30, 285/75-18, 271whp / 388wtq
The one I won't, (Jul-2005 to Sep-2012):
2005 F-350 XLT, CCLB, SRW, 4x4 FX4

6.0L PSD, ZF-6S650, 3.73, 35x12.5-18, 4.5" Lift
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post #6 of 10 (permalink) Old 03-02-2014, 03:43 PM
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I had [email protected]KEM write my current tune with inferred EBP for my Powermax turbo and it has been flawless. Excellent throttle response, pulls hard and no smoke. It runs so good on this tune, that I have not touched it in years. This goes against the stategy rollback theory. I think every truck has a unique set of circumstances, and do agree that different strategies perform better or worse in different yr model trucks/mods. When I would run using EBP the truck dosen't run right, even after cleaning the tube and sensor. For my situation, inferred EBP works best and has been trouble free.

To possibly help answer Levis question about the different strategies, I remember somewhere there was a list of all the 6.0L strategies throughout the yrs, but I can't seem to find it. I'll keep looking and post it if I come across it.

Harry

Jan 03' built 6.0/F250cc4wd trqsft/SCT-tuned by KEM-Performance/Garrett Powermax vg-turbo/blue spring mod/gauges=egt+boost+fuel+SG2/exhaust/airaid intake/DR 4.5 lift/dual bilsteins/315's/greasable ball joints/powerstop/smittybuilt/kc lights/high idle mod/roll-n-lock/Mobil Delvac1 ESP 5W40 with (Archoil AR9100 in the oil) and (AR6200 in the fuel)

Last edited by harry6.0; 03-02-2014 at 03:47 PM. Reason: added a sentence about the strategies
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post #7 of 10 (permalink) Old 03-02-2014, 07:40 PM
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The 2003 PCM CAL will all start with VXA.
The 2004 PCM CAL will start with VXB.
The 2005-2007 PCM CAL will start with VXC.

There were MANY running changes. I have a Ford document from Aug 2003 that lists 5 running changes in the calibration for the 2003.

I had another file saved that I thought had a more complete list (as harry mentioned). I can't seem to find it either - so if you find yours Harry - PLEASE post it!

Mark
06 F250 CC SB FX4 Lariat;ARP studs;OEM gaskets;Banks exhaust;DynaTrac Ball joints;Coolant filter;High-Idle mod;RACCCV6000;JimmiJammers;Ravelco;SynchroMax xfer case;Fumoto valve;Harpooned;CPOhighwayProducts toolbox;tracrac;Fox Weatherboots;Wet Okole Seat Covers;BriteBox;Re-flashed;Quadzilla Recon XZT Fuel Press;Blue FPR spring;DashDAQ;PHP FICM;RiffRaff boots;DCPower270AXP;PowerInverter;Rancho7000's;BPD EGR cooler;One-piece HPOP fitting;D-plugs&standpipes;BPD BilletWaterPump;SCT w/ Matts SRL+;ELC Ultra;DuraTracs
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post #8 of 10 (permalink) Old 03-02-2014, 07:47 PM
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Here is somewhat of an explanation from PHP on the calibration (strategy) process:

Question:
I thought that that no matter the strategy, that if you have a tuner with a custom tune, it takes over and thats what the truck runs on?

Answer from PHP:
For the most part, you'd be correct... if all there was to the tuning was the maps and parameters and such. The problem is that the ECM runs a "program" which can control things in a different manner. It's much like having Windows and running Microsoft Word versus Wordpad. In some sense they are both word processors and do the same thing, but one has more/different features and how they achieve the results is different. The ECM isn't that much different and even something as changing/adding one function can change the way the software compiles and even how it runs.

From my recollection the VXCF4** strategies gave the best performance in the 05-07 vehicles.

Mark
06 F250 CC SB FX4 Lariat;ARP studs;OEM gaskets;Banks exhaust;DynaTrac Ball joints;Coolant filter;High-Idle mod;RACCCV6000;JimmiJammers;Ravelco;SynchroMax xfer case;Fumoto valve;Harpooned;CPOhighwayProducts toolbox;tracrac;Fox Weatherboots;Wet Okole Seat Covers;BriteBox;Re-flashed;Quadzilla Recon XZT Fuel Press;Blue FPR spring;DashDAQ;PHP FICM;RiffRaff boots;DCPower270AXP;PowerInverter;Rancho7000's;BPD EGR cooler;One-piece HPOP fitting;D-plugs&standpipes;BPD BilletWaterPump;SCT w/ Matts SRL+;ELC Ultra;DuraTracs
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post #9 of 10 (permalink) Old 03-02-2014, 07:55 PM
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Here is an old post from Vivian (Quick Tricks):

VXCF is the family of computers and all F-Series 2005-2007 will have a VXCF strategy (the Excursions are different). However, what determines your computer code/tear tag, for custom tuning, is the last 3 digits/letters. There are good and bad strategies where some accept power more readily than others.

What is a reflash? A reflash is a correction Ford has made in the computer that is causing them warranty $$. The higher the 5th digit, the newer the strategy. In the case of the VXCF9 - Ford introduced this strategy to try to protect the FICM because they have had to replace so many! Whether it does what it's supposed to, or not, I don't know and I don't think Ford knows either. I spoke with a gentleman last week who has been running the VXCF9 for 1 year, 1 1/2 years and his FICM just went out

As far as whether it's a good code depends on what you had before (complete 7 numbers/letters) and what you become after the flash. There are good VXCF4, 7 and 9 and there are bad. I wouldn't even consider going back to a 0 or 1.

As far as fuel mileage and hp, all the trucks are different. I don't believe the older strategies, in general, give you more hp or save more fuel - that pretty much depends on you and your truck.

VXAN0 (2003MY)
VXAP1 (2003MY)
VXAP2 (2003MY)

VXBC9 (2004MY)

VXCF0 (2005MY)

VXCF1 (2006MY)

VXCF4 (2005,2006,2007MY)
VXCF5 (2005,2006,2007MY)
VXCF7 (2005,2006,2007MY)
VXCF9 (2005,2006,2007MY)

The first 3 digits of the strategy will determine the group years of trucks.
However, what determines your computer code/tear tag, for custom tuning, is the last 3 digits/letters. There are good and bad strategies where some accept power more readily than others.

Mark
06 F250 CC SB FX4 Lariat;ARP studs;OEM gaskets;Banks exhaust;DynaTrac Ball joints;Coolant filter;High-Idle mod;RACCCV6000;JimmiJammers;Ravelco;SynchroMax xfer case;Fumoto valve;Harpooned;CPOhighwayProducts toolbox;tracrac;Fox Weatherboots;Wet Okole Seat Covers;BriteBox;Re-flashed;Quadzilla Recon XZT Fuel Press;Blue FPR spring;DashDAQ;PHP FICM;RiffRaff boots;DCPower270AXP;PowerInverter;Rancho7000's;BPD EGR cooler;One-piece HPOP fitting;D-plugs&standpipes;BPD BilletWaterPump;SCT w/ Matts SRL+;ELC Ultra;DuraTracs

Last edited by bismic; 03-02-2014 at 08:05 PM.
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post #10 of 10 (permalink) Old 03-03-2014, 03:36 AM Thread Starter
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Got the tunes. They are written for power max and BPD oil cooler. Can't wait to try. Will update this week. Thx guys

2015 F350 Platinum, Crew Cab, Long Bed, 3.55, FX4, B&W Turnover Ball, Firestone Riderites w/ compressor
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