When you turn the ignition on(not start the car) you should hear the fuel pump power up.get a buddy to put his ear by the back of the car cause sometimes you won't be able to hear it when your in the car.If it makes an almost buzzing sound that means it's good to go, if it makes no noise then you have a fuel pump to change which isn't very easy to do yourself but can be done.I know from experience!
Faulty fuel pump. Faulty fuel pump relay. Faulty fuel pressure regulator. Clogged fuel filter, pickup, or line. No fuel in the fuel tank.
A faulty fuel pump or faulty wiring to the fuel pump. Be sure to replace the fuel filter also.
Blown fuse. Bad fuel pump relay. Faulty new fuel pump. Faulty wiring. Loose/rusty ground connection. Faulty fuel pressure regulator.
You may have a leaky fuel injector or a faulty check valve in the fuel pump. I vote for the faulty fuel pump.
There are many different reasons for that... It can be faulty fuel pump. It can be low pressure in the fuel line. It can be faulty fuel pump relay and etc.
the fuel pump tank wiring is faulty at the pump
the fuel pump would be in the fuel tank as in is on most gas cars
Under the left kick panel on the drivers side of the car.
in the fuel tank.
Faulty fuel pump. Incorrect fuel pump pressure. Dirty fuel filter. Faulty engine coolant temp sensor.
To determine if the issue lies with the fuel pump or the fuel pump relay in a 1993 Audi 90CS, start by checking for power at the fuel pump while the ignition is on. If there’s no power, the relay may be faulty; you can test the relay by swapping it with a similar one in the fuse box. If power is present but the pump isn't working, the fuel pump itself might be the problem. Additionally, listen for a humming sound from the fuel pump when the ignition is turned on, indicating it's functioning.
the fuel pump is inside the gas tank