If the car seems to be sluggish when running and you have to push the pedal all the way down, my first guess to check would be the catalytic converter, when they go bad it seems like the car just...
If your car seems to idle like it should you may have a clogged fuel filter or clogged exhaust pipe. The clogged exhaust pipe would most like ly be the catalytic convertor. a clogged convertor...
Remove the gas cap and have someone turn the ignition on without starting the car. You should hear the pump run for a few seconds. If you do not, then check the fuse and fuel pump relay. If you do...