I recently went to Toyota to get a diagnostic done. Everything came back normal but it’s still jerking when I press on the gas. I don’t know what it could be :(. This is my first car and I’m at a loss right now

Car when driving on a steep place it loses power what could be the problem

The MMT gearshift of my Toyota Yaris 2005 with 115000km is very jerky, especially from standstill to reverse/1°. Could be depending on the gearshift parameters which do not match the geometries of the gearshift anymore?
Thanks!

Rpms too high problems n how to solve

My rpms are very high how to reduce it it has an electrical throttle body

My car is a Toyota Vitz Japani 2011 1300cc. There is a problem with it. If it is on a slope or on soft ground, it completely loses power and also releases the accelerator. The engine fan starts making noise and starts spinning very fast. But on a paved and straight road, it does not cause any problems at all. I have also done tuning twice. Still, the problem is not solved. If any brother knows, please tell me. Thanks.

This can happen in any temperature. Always happens in lower <3000 rpm high engine load like near full throttle. It's like the fuel pump or injectors suddenly shut off.

At the maximum left or right turn while the car is moving backwards, it sounds as if the wheel is spinning normally and suddenly jerkily, as if you are stepping over a obstacle with the wheel. I changed the anti-roll bars because both had broken rubber, but the problem was not solved.

Had all sensors checked and replaced. Car start and only run on low revs. It's manual and when shifting through gears it can't pull away.