CAr cut off& won't restart? Changed the fuel pressure regulator, still nothing!! When quick start is sprayed it cranks then shuts right off. Please help!!!!!!
You might have a bad manifold absolute pressure (map) sensor. it's on the intake manifold, it weighs the air that comes in the intake (weird huh) and if it goes bad it reports a condition that doesn't really exist to the computer that controls engine functions. if you unplug the sensor and then the engine starts, you got a bad sensor. the engine computer will set a code and the check engine light will come on, but you can replace the sensor and have the code cleared. if you unplug the sensor and the car still won't start, it's not that sensor. hope that helps. failure of this sensor will definitely cause a no start condition.
Can you hear the fuel pump in the fuel tank come on? If you don't hear a slight hum when you first turn the car on but not try to start then your fuel pump is gone. Change the fuel pump if this is the case.
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