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Message: [QUOTE="Charles, post: 475208, member: 103"] It's probably vehicle speed and Accelerator pedal position. If you tell him the voltage he can figure the pedal position, and if you tell him the mph you're reading on the speedo he will know what the PCM is seeing. The key being to provide these figures under the exact conditions you want the shift to occur under. Like, at ____mph mash the pedal until you wish it would downshift and tell him it was at ____ volts and ____mph and I wanted a downshift from 2 to 1 and it wasn't happening. And you might just mess up and see that your TPS isn't going to full voltage but some of the time or something along those lines.... :toast: Fwiw, my truck 100% makes all shift points based on VSS and TPS. Period. I see no reason why yours would need anything else. There could be temperature lockouts on some features for cold or hot oil perhaps. Talk to your [i]tuner[/i]. [/QUOTE]

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