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What makes the fuel cutoff light come on and car keep stalling as if out of gas?

A fuel cutoff light accompanied by stalling, mimicking an out-of-gas scenario, usually points to a problem *beyond* simply running out of fuel. Here are some of the most likely culprits:

* Fuel Pump Issues: A failing fuel pump can't deliver enough fuel to the engine, leading to stalling and the fuel cutoff light (the light may be interpreting the low fuel pressure as "out of gas"). This could be due to a failing pump itself, a clogged fuel filter restricting flow, or a problem with the pump's electrical supply (wiring, relay, fuse).

* Fuel Filter Clogged: A severely clogged fuel filter will restrict fuel flow, leading to similar symptoms. The engine may sputter, run poorly, then stall completely.

* Fuel Pressure Regulator Problems: This component regulates the fuel pressure in the system. A malfunctioning regulator can cause either too high or too low pressure, both of which can lead to stalling and the light triggering.

* Crankshaft Position Sensor (CKP) or Camshaft Position Sensor (CMP) Issues: These sensors tell the engine's computer where the pistons are in their cycle. A faulty sensor can prevent the engine from getting the correct fuel and timing, causing stalling. While this doesn't directly relate to fuel *level*, it can mimic the symptoms.

* Mass Airflow Sensor (MAF) Problems: The MAF sensor measures the amount of air entering the engine. A faulty MAF sensor can cause the engine to receive an incorrect air/fuel mixture, leading to poor running and stalling. Again, it's an indirect cause but can have similar results.

* Low Fuel Level (obviously): While less likely if you've recently filled up, a genuinely low fuel level can activate the light and, eventually, cause the car to stall. Make sure to check this first, as it's the simplest explanation.

* Wiring Problems: Problems with the wiring related to the fuel system or the sensors mentioned above can cause intermittent stalling and triggering the fuel cutoff light.

Important Note: Don't continue driving with this problem. Running the engine with insufficient fuel can damage the pump or other components. Get your vehicle to a qualified mechanic for diagnosis and repair. They will likely need to use diagnostic tools to pinpoint the exact cause.