Engine Fuel Temperature
Indicates the temperature of the fuel in the system.
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)
The computer measures the fuel temperature to ensure it's within a proper range for efficient combustion. If the temperature is too high or too low, it can affect performance.
What the computer is actually seeing
The ECM reads fuel temperature from the sensor, often between 0 to 100 degrees Celsius. When the fuel temperature exceeds factory specifications, it triggers this code.
What a healthy reading looks like
Normal fuel temperature should be around 15 to 60 degrees Celsius; beyond this range can lead to falls in performance or potential engine damage.
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. Inspect the wiring and connections to the fuel temperature sensor for damage or corrosion.
- 22. Check the fuel temperature sensor using a multimeter. Expected resistance values should match the manufacturer’s specifications (usually around 2k-10k ohms at 25 degrees Celsius).
- 33. Verify fuel system health; check for any fuel contamination or quality issues by sampling the fuel.
- 44. If the sensor checks out, use a scan tool to monitor real-time fuel temperature readings. Compare them to the expected values during operation.
- 55. If the readings are erratic or outside the expected range, replace the fuel temperature sensor.
Common causes
- Faulty fuel temperature sensor
- Poor wiring or connections
- Contaminated fuel
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's moderate severity; performance may be affected, so drive with caution until repaired.
Will this code come back after resetting?
If the underlying issue isn't fixed, it likely will return.
Why does it pair with other codes?
Codes appear together due to shared components affecting the system, like sensors or wiring faults.
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