Join Date: Aug 2010
Location: Sassamansville, Pa
Thanked 195 Times in 157 Posts
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Let's start from the beginning.
When you bought the used X-3, was it unlocked?
Does it have unlocks left?
Is this X-3 an original style or the newer style X-3?
Did you buy custom tunes, or are you trying to use custom tunes that the prior owner had in it?
When you updated the Firmware, did you return the truck back to stock first?
If all else fails, contact SCT, they can remote set-up your PC and X-3.
2004 F350 CC DRW King Ranch
X-3 tunes by DJ'S,QT,GH,ID. Gryphon FICM tunes, ARP studs,Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,AD2,Snow Perf stage II,EGR delete,4" turbo back straight pipe,S&Bintake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB