When I took my old pcm out I forgot to reprogram my factory settings out of myHPPIII into my old pcm will I hurt anything if I take the new tune out tomorrow so I can reprogram the old pcm so I can sell my HPPIII, I just don`t want to mess the new tune up.
2003 black 2500HD xcsb, reflexxion cowl hood,305/70/16 MT baja claws, 16x8 ultra magnum wheels, magnaflow duals,K&N FIPK, NELSON`S TUNE!!!!!!!!!& #33;
Thanks for asking this question, I was wondering the same.
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I think you can swap pcm's as many times as you want. You should not have any problem except going through the key relearn each time. Allen will know for sure.Originally posted by De2500HD@Mar 26 2004, 10:29 PM
When I took my old pcm out I forgot to reprogram my factory settings out of myHPPIII into my old pcm will I hurt anything if I take the new tune out tomorrow so I can reprogram the old pcm so I can sell my HPPIII, I just don`t want to mess the new tune up.
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I just want to double check since I just put the new tune in, he said it would take a day or two for the new tune to be at its best.I figured I better take it back out now reprogram my old pcm and HPPIII before i let the new tune break in and I get used to all that new power.
2003 black 2500HD xcsb, reflexxion cowl hood,305/70/16 MT baja claws, 16x8 ultra magnum wheels, magnaflow duals,K&N FIPK, NELSON`S TUNE!!!!!!!!!& #33;
Never mind farmtruc, I did it this morning had no problem.
2003 black 2500HD xcsb, reflexxion cowl hood,305/70/16 MT baja claws, 16x8 ultra magnum wheels, magnaflow duals,K&N FIPK, NELSON`S TUNE!!!!!!!!!& #33;
sorry for the delay, too late to answer, LOL, once a pcm is programmed, you're good to go, you'll never loose the tune by removing it. The only way is if a dealer or some other tuner reflashes the pcm.
thanks,
allen
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