What is the reason for the insufficient power of the car uphill?

1, there is no good mixture. The main reasons are insufficient pressure of gasoline pump, blocked gasoline filter, blocked fuel injector or hairpin, unclean air filter, blocked exhaust pipe or three-way catalytic converter, and control system of reburning engine.

2. There is no good and accurate ignition, mainly due to the engine control system such as spark plug, igniter and ignition timing;

3. The cylinder pressure is not enough, which is a mechanical failure.

Mainly because of variable speed gearbox, such as gearbox slipping, gear damage affecting transmission ratio and so on. , resulting in a decline in power transmission efficiency.