Fuel Pressure Sensor Out of Range
The fuel pressure sensor reading is outside the normal range.
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What it means (plain English)
The engine computer checks the fuel pressure to ensure the engine is getting enough fuel and if the pressure is too low or high, it triggers this code. It usually happens when the fuel pressure sensor fails or there's a fuel leak.
What the computer is actually seeing
The engine control module (ECM) expects a fuel pressure between 50 to 70 psi while the engine is running. If the sensor sends a reading below 40 psi or above 80 psi, it throws this code.
What a healthy reading looks like
Fuel pressure should be 50-70 psi at idle for most systems; check vehicle-specific specs.
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 for any visible wiring damage or loose connectors at the fuel pressure sensor. Repair/replace as necessary.
- 22. Inspect the fuel lines and connections for any leaks or signs of wear. Repair as needed.
- 33. Measure fuel pressure with a manual gauge to confirm if it falls within the expected 50-70 psi range while the engine is running.
- 44. If the fuel pressure is low (below 50 psi), check the fuel pump for output and the fuel filter for clogs. Replace if necessary.
- 55. If the fuel pressure is acceptable but the code persists, replace the fuel pressure sensor.
Common causes
- Faulty fuel pressure sensor
- Wiring issues to the fuel pressure sensor
- Fuel leaks in the system
- Weak fuel pump
- Clogged fuel filter
Typical repair cost
$$$
Related codes
Frequently asked questions
Can I drive with this code?
It's best to fix this soon as low fuel pressure can cause performance issues or stalling.
Will this code come back after clearing?
If the underlying issue is not fixed, the code will likely return.
Why does it sometimes pair with other codes?
Fuel pressure issues can affect various systems, leading to multiple codes being triggered.
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