The P2264: Water in Fuel Sensor Circuit refers to an issue detected in the circuit of the water in fuel sensor. This code indicates a problem with either the sensor itself, the wiring, or a malfunction in the sensor’s electrical circuit, which can affect the detection of water in the fuel system.
P2264 – Quick Overview
Code | Information |
---|---|
Meaning | P2264: Water in Fuel Sensor Circuit |
Is it serious? | Yes, this can lead to contaminated fuel entering the engine, which may cause significant engine damage if not addressed. |
Possible causes | – Faulty water in fuel sensor – Wiring or connector issues – Sensor circuit malfunction |
How to diagnose? | – Inspect the water in fuel sensor and circuit – Test the sensor operation – Check wiring and connectors for faults |
P2264 Meaning
The P2264: Water in Fuel Sensor Circuit code indicates that there is an issue within the circuit that detects water in the fuel. The sensor is designed to alert the driver when there is water in the fuel system, which can lead to engine damage if untreated. This code can be triggered by a faulty sensor, problems with the wiring or connectors, or a general malfunction in the sensor’s circuit.
Step-by-step diagnostic guide
Action | Description | Tools Needed |
---|---|---|
Check for Other Codes | Use an OBD-II scanner to determine if there are additional codes that may be related to the water in fuel sensor circuit issue. | OBD-II Scanner |
Inspect Water in Fuel Sensor | Visually inspect the water in fuel sensor for any physical damage, corrosion, or signs of wear. | Flashlight, Safety Gloves |
Test the Sensor Operation | Use a multimeter or diagnostic tool to test the functionality of the water in fuel sensor. Verify that it is sending correct readings according to the manufacturer’s specifications. | Multimeter, Diagnostic Tool |
Inspect Wiring and Connectors | Check the wiring and connectors related to the sensor for any signs of fraying, corrosion, loose connections, or damage that could cause circuit issues. | Flashlight, Multimeter |
Verify Sensor Voltage and Resistance | Measure the voltage and resistance of the sensor circuit to ensure it falls within the expected range as outlined by the vehicle’s service manual. | Multimeter |
Clear the Code and Test Drive | After addressing any faults, clear the code using an OBD-II scanner, then perform a test drive to see if the code reappears. | OBD-II Scanner, Vehicle Owner’s Manual |
Recheck for Codes | After the test drive, re-scan the vehicle to ensure that the P2264 code has not returned. If it does, further in-depth diagnosis may be necessary. | OBD-II Scanner |

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Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)