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11 Posts
OK guys I need help like asap. I drive a 2002 f250 7.3 and have a bully dog power pup, works fine on my truck, Well I put it on my girlfriends dads truck to pull a horse trailer, well when I tried to return to stock, it says mismatch ecu, cant continue. I used the programmer just this morning to give the 50 horse tow tune, now I cant get it off, HHHHEEEEELLLLPPPP!!!!:dunno: