Fuel Consumption Monitoring Error
The system has detected a problem with the fuel consumption data.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
Your truck's computer isn't getting accurate information about how much fuel is being used, which could mean something is wrong with the fuel flow sensor or its wiring.
What the computer is actually seeing
The engine control module (ECM) expects consistent fuel flow data, typically measured in liters per hour (L/h) or gallons per hour (GPH). If data falls outside the expected range due to sensor issues or wiring faults, this fault code triggers.
What a healthy reading looks like
Fuel flow readings should generally fall between 0-500 L/h or similar, depending on engine design.
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 wiring and connectors for the fuel flow sensor. Look for any frayed wires or signs of corrosion.
- 22. Check fuel levels to ensure adequate fuel is present. Proper level is typically above the minimum line specified by manufacturer.
- 33. Measure the output of the fuel flow sensor while the engine is running. It should match expected values within the range you found earlier.
- 44. If the sensor output is out of range, replace the fuel flow sensor and retest.
- 55. If the output is normal but the code remains, check the ECM for proper function or software updates needed.
Common causes
- Faulty fuel flow sensor
- Wiring issues or damaged connectors
- Faulty ECM
- Incorrect fuel levels
- Sensor calibration issues
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
While it may be drivable, incorrect fuel consumption data can lead to poor performance and increased emissions, so get it checked soon.
Will this code come back after clearing it?
If the underlying issue isn't fixed, it will likely return.
Why is this code paired with others like SPN 3050?
These codes relate to the same system and can indicate multiple issues affecting fuel consumption monitoring.
Working a real vehicle right now?
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