Water in Fuel Sensor Circuit High
The P2267 code indicates that the water-in-fuel sensor circuit is reading a higher than expected voltage. This sensor is typically located in the fuel filter/water separator assembly on diesel engines. High voltage suggests a short to power, open ground, or a faulty sensor. It can also be caused by wiring issues or a malfunctioning ECM. This condition may trigger the water-in-fuel warning light and can lead to fuel system damage if ignored.
01. Most Common Causes
- Faulty water-in-fuel sensor
- Short to power in sensor circuit
- Open ground circuit
- Corroded or damaged wiring/connectors
- Faulty ECM (rare)
02. Symptoms You Will Notice
- Water-in-fuel warning light illuminated
- Engine may run rough or have reduced power
- Difficulty starting or stalling
- Fuel system contamination
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to verify the code and check for related codes.
Step 2: Inspect the water-in-fuel sensor and its connector for corrosion, damage, or loose pins.
Step 3: Measure voltage at the sensor connector; compare to manufacturer specifications (typically 0-5V).
Step 4: Check for shorts to power or ground in the wiring harness using a multimeter.
Step 5: If wiring is intact, replace the water-in-fuel sensor and clear the code.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive with this code as water in fuel can damage the fuel injection system. Have it diagnosed and repaired promptly.
How much does it cost to fix?▼
The cost typically ranges from $50 to $150 for parts and labor, depending on the vehicle and shop rates.