Did you replace the fuel filter?
Probably the fuel pressure sensor malfunctioning...
Rough acceleration in a 2001 Chevy Impala could be caused by issues with the fuel system, such as a clogged fuel filter or dirty fuel injectors. It could also be due to a problem with the ignition system, such as faulty spark plugs or a malfunctioning ignition coil. Additionally, a dirty air filter or a vacuum leak could also result in rough acceleration.
have you tuned it up? plugs, wires, cap + rotor
IT CAN BE A FUSE. OR IT CAN BE THAT THE PUMP IS NOT PUMPING FUEL
it depends on many things. if is an old car carburated and it is rough at idle, then mixture could be a factor.
a rough road can cause the fuel shut off switch to turn off
It could be that the 'thermometer' and I presume you mean Thermostat is in backwards
I just changed fuel filter,pump,sparks plugs and wires on mine and it runs great!
You do not clean any fuel filter you just replace it. If it has a filter in the tank it is a permanent filter that is only replaced when the pump is replaced.
rough start also in some cars the fuel sensor is inside and the care wont let u know how much gas is really in the car fuel gauge will not work or be accurate
Possibly the fuel pump relay.
You do not need a photo. Just follow the fuel lines from the fuel tank to the engine and you will find the filter. If you find no filter then the filter is a permanent filter inside the fuel tank that is replaced when the fuel pump is replaced.