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I know some of you have been following my gear swap saga and then onto problems trying to get my PCM re-programmed to reflect the new 456 ratio correctly.
Just spoke with Mark at PCM of NC in Morresville. Advised him that his changes to my PCM did not work. Readings versus my GPS remain 10-12 mph off more or less. He used the tire size info and new gear set info to input his values.
Told me he uses HP Tuner while on the other hand, he told me he thought Keith at PCMforless in Ohio used LS2 Edit.
Keith had been unable to get into my PCM with his program, so now I'm seeking info from others that have used Keith or other sources to get theirs accurately changed. Perhaps Keith has only had success doing an alteration on a 2003/4 model which I understand uses a different style of PCM???
Would like to hear back from anybody with an 05/06 model that has swapped out their rear gear set and had a successful and accurate alteration done to their speedo. Who did the alteration and what program did they use...........or did they just "play" with tire sizes and gear ratios to fake out the PCM and get the speedo close.:confused
I know some of you have been following my gear swap saga and then onto problems trying to get my PCM re-programmed to reflect the new 456 ratio correctly.
Just spoke with Mark at PCM of NC in Morresville. Advised him that his changes to my PCM did not work. Readings versus my GPS remain 10-12 mph off more or less. He used the tire size info and new gear set info to input his values.
Told me he uses HP Tuner while on the other hand, he told me he thought Keith at PCMforless in Ohio used LS2 Edit.
Keith had been unable to get into my PCM with his program, so now I'm seeking info from others that have used Keith or other sources to get theirs accurately changed. Perhaps Keith has only had success doing an alteration on a 2003/4 model which I understand uses a different style of PCM???
Would like to hear back from anybody with an 05/06 model that has swapped out their rear gear set and had a successful and accurate alteration done to their speedo. Who did the alteration and what program did they use...........or did they just "play" with tire sizes and gear ratios to fake out the PCM and get the speedo close.:confused