The PCM will have a P1000 not ready OBD code until a new drive cycle is stored. I usually tell them I reset the batteries to try to fix the issue to explain the code. My dealer considers a P1000 to be a you re-flashed it code. I ran an Innovative tune for 50K miles and when the dealer tore my truck down for head gaskets the pistons looked stock.  I also have seen an injector stick open and torch a piston like butter.
If you use SCT you may need to get the tuner unlocked after a dealer reflash. Otherwise it will keep your old stock data in memory next time you use it.
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2005 F250 FX4 SuperCab SWB in DSG
Buckstop rear bumper American steel!
Daystar baja bar with PIAA Racing 80's
Quad pillar Air, trans temp, pyro, boost
Magnaflow 15954, ATS studs
Transfer Flow 46gal midship tank
Firestone Airbags 2400 kit ViAir 250C compressor
Eaton TruTrac, Rancho 9000's, Skyjacker 1.5" rings
ViAir 380C@200psi, 5gal tank, Siege Anvil train horns say move *****!
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