LS1B PCM 2004 TPS for Part Throttle shifting

[nonnieselman]

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?

[joecar]

I'm fairly sure it uses TP at the TB (anyone please correct me).

[nonnieselman]

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?

[joecar]

APP is "requested" throttle;
TP is "delivered" throttle (actual throttle);
you can see why CC would use TP.