Something else is generating enough current to keep the car running. Electric cooling fan is a good bet, could be the alternator. Either one can act as a generator and produce enough current to back feed and keep the car running. Unplug each separately to see if one or the other is the problem. I would bet on the cooling fan.
Turning the key to only the on position, the pump will only run for a couple of seconds to prime the system. Turning the key on and starting the engine, the pump will run and keep running as long as the engine is running.
turn the key from the off position to the on position without starting the car 3 times, finishing with the key in the on position but without the engine running. this enables the check engine light to display any engine fault codes.
Its not your engine. Its the fan running to cool the engine down. They all do it and nothing is wrong with your car.
The key has to be turned to the "Run" position, but the engine should not be running. The key has to be on to power up the ECU.
The "bulb check" feature of most cars work by all coming on momentarily as the key is turned to the "on" position before turning further to the start position, then go out if there are no problems after engine is started and running. Also on the "Check Engine" light will illuminate any time the key is in the "run" position but the engine is not running.
Faulty ignition switch.
Because it will stop and then car will braked . Engine will be blow up .
Fuel pressure regulator, or a stuck relay.
Bad ignition switch?
your coil pack sits on top of your engine. if you keep your vehicles key in the on position you will fry your coil pack if your engine is not running, for best results use only your "ACC." postition. and yes this can make your engine not start.
Your diesel vehicle might keep running after turning off the key because there is still enough fuel in the system to allow it to idle. In many diesel vehicles, the engine is stopped by choking the fuel.
Fuel pressure regulator. it has a hole in the seal.it is allowing fuel to by pass when it is suppose to not.