incorrect fuel to air ratio. usually the cars computer or ECU has not adjusted the fuel ammount to compensate for the extra air intake due to acceleration
Lack of propulsion.
It is the alternator....
AnswerIf you are having problems with power while shifting and accelerating have your fuel censor looked at. You may need egr valve checked .You may need intake decarbonized .You may need mass air flow sensor .
dirty fuel filter
start with the spark plugs
A plane may stop accelerating due to reaching its maximum speed limit, encountering headwinds that counteract its forward motion, or due to the pilot intentionally reducing engine power to maintain a specific speed or altitude.
Loss of power when accelerating can be caused by a number of things. A leak in the fuel line or even a bad alternator can cause this.
you have a vacuum leak
Burning rubber, or screeching the tires, and then accelerating.
Cylinder miss.
The most common cause is slipping belt
unburnt fuel