I answered your post in Powerstrokenation.
If the letters you found were in fact F7TF-?? then you have a DPC-202 PCM. At this point it doesn't matter what the box code is (TDE0/YBT1/etc.) because you have a DPC-202 PCM. Get a TDE1 chip and BE HAPPY!
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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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