Bad as in dirty would simply supply unfiltered fuel to the injectors resulting in misfiring,hard starting and uneven and generally bad acceleration.Bad as in faulty could lead to fuel starvation,motor won't start, rev,cut out etc.
no, supply unfiltered gas to the injectors? its a restriction, meaning no or very little gas to injectors, low or no fuel pressure
bad fuel pump, no gas in the tank, pluged fuel filter.
you can take fuel filter out on driver side underneath car crank it over if no fuel comes out pump is bad it would be a good idea to change the fuel filter anyway.
clogged fuel filter, or bad fuel pump
Both can cause it.
If it is really stopped up it will not let the fuel pass through and cause the car not to crank, but it would have to really bad shape to have zero flow.
Bad fuel pump, blown fuel pump fuse, bad fuel pump relay, or clogged filter.
It could. Replace the filter and you will then know if that is the culprit.
Bad fuel Pump? Bad fuel pump relay? Plugged fuel filter?
Plugged fuel filter Plugged air filter Restricted exhaust (bad Cat)
Yes
Weak fuel pump? Bad fuel/air filter? Water in fuel?
Bad fuel pump, clogged fuel filter, or clogged injectors would be the place to start. If it's an older car with an engine mounted fuel pump, you could have a hole in your fuel line which would prevent suction from the tank.