Poor throttle will affect gearbox shifting.

Vehicle speed, the position where the accelerator is depressed (throttle position sensor), as well as the throttle and engine speed. Mainly the speed. When the vehicle speed reaches a certain speed, the computer will receive the signal from the vehicle speed sensor to control the gear shift. The higher the vehicle speed, the higher the gear position. When overtaking, we will slam on the accelerator. At this time, the throttle position sensor will send a signal to the computer, so that the gear will rise again after overtaking. It is worth mentioning that, for example, when you are in a certain gear, for example, when you step on the accelerator uphill, as long as you don't let go of the accelerator, the automatic gearbox will not shift up or down until you let go of the accelerator, even when overtaking. For example, if you overtake and step on the accelerator, it will not automatically downshift or upshift, only if you step on the accelerator. I hope it helps you.