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| 1999 to 2003 7.3L Power Stroke Diesel 7.3L Power Stroke Diesel equipped Super Duty and Excursion. |
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#1
Wed, April 5th, 2023, 04:53 PM
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Quote:
Download a set of VRAA7S6 calibrations and give it a run. Just DO NOT mix the VRAA6S3 and VRAA7S6 calibrations on the chip as the engine will likely stall or cause a severe stutter when going from one hex code to another.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim. Last edited by cleatus12r; Wed, April 5th, 2023 at 05:04 PM. 
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#2
Wed, April 5th, 2023, 06:23 PM
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Just so that I am clear on this, you are saying to change all the programs over to the VRAA7S6 code and to not have any of the VRAA6S3 codes on the chip?
Kent Oh, and by the way, thank you very much for helping me out on this.
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#3
Wed, April 5th, 2023, 07:35 PM
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Well, you CAN have both on the chip. It's not good practice though because if you accidentally hit an up or down button too many times and switch the hex code when the engine is running and while everything's powered-up, the engine can die or keep running with messed-up parameters for that key cycle which is not good.
For instance, if you want both calibration families on the chip, put one set (say VRAA7S6) on positions 1-4 and do not go past that with the engine running. Then put 5-8 (or whatever) as the VRAA6S3. To change between the two, the engine has to be off but the key in the run ("on" position). To switch from the 1-4 set to the 5-8 set: 1. Stop the engine 2. Turn the key to "run" 3. Change switch position to "05" (or whatever position starts the other set) and wait for the confirmation blink. Your wait to start light may flash and you might hear a click. Normal. 4. Turn the ignition back "off". 5. Restart the engine normally. Use the second set of calibrations as you normally would. Switching on the fly is fine. Just don't go to the other set (1-4 in this case) while the engine is running and especially while driving. To switch back to the other set of hex code calibrations, repeat the above steps.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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#4
Wed, April 5th, 2023, 07:59 PM
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Got it!I think for now I will only run one Code so I do not have any issues. Thank you again. It will be a week or more before I can give this a shot as we are leaving town for a week to visit my In-Laws.
Have a happy Easter everyone. Kent
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#5
Tue, May 9th, 2023, 06:28 PM
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Could we get some feedback if this helped with shift problem’
I have same symptoms Thanks
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2000 7.3 Lariat CC SB Non-EBPV pedestal. Wicket wheel. 6637 Air Filter. AiH delete. PHP Hydra Tuner Stock, 4 stack pillar (boost, EGT, Tranny Temp, Fuel Pressure), Rebuilt Tranny, BD diesel deep tranny pan. 6.0 Tranny cooler, Hutch Mod. Riffraiff intake inserts, CAC boots, hpop jic, HPX and FRX lines. MBRP 4" SS Next...Adrenaline Custom Tunes 175/30 injectors
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#6
Thu, May 11th, 2023, 11:38 AM
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Ok well I reflashed to the VRAA7S6 and I can definitely agree the shift points are much better. No hard downshifting.
Thank you for suggestion. Will report back if any quirks arise. Cheers all!
__________________
2000 7.3 Lariat CC SB Non-EBPV pedestal. Wicket wheel. 6637 Air Filter. AiH delete. PHP Hydra Tuner Stock, 4 stack pillar (boost, EGT, Tranny Temp, Fuel Pressure), Rebuilt Tranny, BD diesel deep tranny pan. 6.0 Tranny cooler, Hutch Mod. Riffraiff intake inserts, CAC boots, hpop jic, HPX and FRX lines. MBRP 4" SS Next...Adrenaline Custom Tunes 175/30 injectors
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