Does a reflash mean I need new tunes? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 3 (permalink) Old 11-14-2010, 07:23 PM Thread Starter
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Does a reflash mean I need new tunes?

So the truck just got reflashed from VXCF43N and TQCI0AN to VXCF9N4 and TQCI1NA. Does this mean I need new tunes for my XCal 3? I would assume it does, but I want to make sure. I'm running it stock for now as the shop that worked on it (not the dealer) recommended leaving it stock to see if my lack of towing performance is improved. I'd like to be able to run it tuned again once the problems are sorted out.

'05 F350 Amarillo CCSB FX4, Skyjacker 2" coils, 18x9 Moto Metal 951's, 305/65-18 BFG AT K/O's, Bilsteins, Skyjacker dual stabilizers
SCT XCAL3 from Elite Diesel, AEM Brute Force Dry Flow, semi-Zoodad, Steveracer mod, CCV reroute, RCD EGR delete, Autometer Ultralites on the A-pillar
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post #2 of 3 (permalink) Old 11-14-2010, 09:57 PM
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Originally Posted by boggerman View Post
So the truck just got reflashed from VXCF43N and TQCI0AN to VXCF9N4 and TQCI1NA. Does this mean I need new tunes for my XCal 3? I would assume it does, but I want to make sure. I'm running it stock for now as the shop that worked on it (not the dealer) recommended leaving it stock to see if my lack of towing performance is improved. I'd like to be able to run it tuned again once the problems are sorted out.
are you talking about the FICM?? if so thats the same question I have. I just bought a new FICM and am going to have swamp flash it, i was wondering if I can still have it tuned or leave it stock ?

black 2006 lariat F350 SB CC Dually sunroof 12" Procomp lift dual shocks/resivoirs front and rear, fabtech dirtlogic dual resivoir steering stabilizers (all nitrogen). 4in exhaust TB 22" chrome alcoa 18 wheeler rims on toyo 37" open country. 08-10 tailgate recon blacked out lights all way around. Harley front end (lights bumper grill etc) back up sensors and camera custom blacked out badges. 4 JL 10's in shallow box behind seats 2 thousand watt amps w/ custom 6x9's. 8" kenwood indash 5% tint all way around. powder coated frame and custom diff covers. SCT tuned

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post #3 of 3 (permalink) Old 11-15-2010, 12:53 AM
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boggerman....Yes you will need new custom tunes written for your new strategy....
stroke32....Your new FICM flash will not affect your current custom tunes, as those tune files are for your ECM and TCM, the FICM can be flashed independently.

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