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Message: [QUOTE="smokinstroker92, post: 695867, member: 3595"] With my current setup i am having trouble getting my trans to shift properly. When 4wd launched it will tach the red line and bounce off the rev limiter for a sec then shift to second and lock the converter and move on. I did some datalogging with my AE and the pcm is not commanding the shift at the proper rpm i guess because the trans shifts when the seloniod is activated. It does this with three different tuners tunes. My question is what parameters does the pcm command shifts with? TPS and RPMS maby? If i shim the pedal off the floor so that it only reads 65% throttle the truck with shift like a dream but also does not receive full fuel. What else could be causing this besides the tunes? Could i just be unlucky enough to have 3 sets of tunes that are off? [/QUOTE]

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