Hello, when I accelerate harder, sometimes my car chokes or if I am driving faster like 80-90kmh it just stops, and I have to start it up again, it is a manual. With not so quality fuel it happens more often, than with quality fuel. What could cause it?
I have changed fuel filter and added some cleaning liquid to fuel, it helped, now it happens not so often, but still.


Will appreciate any help, thanks!