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Thread: LS1B PCM 2004 TPS for Part Throttle shifting

  1. #1
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    Default LS1B PCM 2004 TPS for Part Throttle shifting

    Does the 1MB LS1B Pcms use throttle pedal position or Throttle body position for part throttle shifting?
    I been slowly adjusting my Tow/Haul tuning on a 2500HD and just dawned on me that maybe its not doing what i want when i want it to because i have been watching the wrong PID.

    Does anybody know what it is using for part throttle shifting?

  2. #2
    Joe (Moderator) joecar's Avatar
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    I'm fairly sure it uses TP at the TB (anyone please correct me).

  3. #3
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    99% sure your correct.. cause when you have the cruise set, the APP reads 0 and the TB TPS reads the %. So no way the APP has anything to do with it or cruise would act weird?

  4. #4
    Joe (Moderator) joecar's Avatar
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    APP is "requested" throttle;
    TP is "delivered" throttle (actual throttle);
    you can see why CC would use TP.

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