Engine Shutdown Due to Low Fuel Level
Engine shuts down because the fuel level is too low.
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What it means (plain English)
The system detects that there’s not enough fuel in the tank to keep the engine running. It usually means the level is below 1/8th of a tank, triggering the shutdown to prevent running dry.
What the computer is actually seeing
The fuel level sensor sends a signal to the Engine Control Module (ECM) indicating the fuel tank level, which then reads below the critical threshold (usually around 7-8%) or the sensor fails entirely (0 volts).
What a healthy reading looks like
Fuel level should be above 8% for normal operation.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check the fuel level in the tank. If it's below 1/8th, refuel and see if the code clears.
- 22. Inspect the fuel level sensor wiring for damage or loose connections. Repair as needed.
- 33. Test the fuel level sensor output with a multimeter. Expected output voltage should be around 0.5V to 4.5V based on the level. If out of range, replace the sensor.
- 44. Check the ECM for faults. If other unrelated codes are present, investigate further.
Common causes
- Fuel tank is truly low or empty
- Faulty fuel level sensor
- Wiring issue to the fuel level sensor
- ECM malfunction
- Intermittent short circuit in the fuel gauge circuit
Typical repair cost
$$-$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Driving with low fuel can lead to the engine stalling. It's best to refuel as soon as possible.
Will this code come back if I refuel?
If the sensor is functioning properly and fuel level is above the threshold, the code should clear.
Why does this code pair with SPN 271?
SPN 271 is related to the fuel level input signal, often triggered alongside low fuel level warnings.
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