AutoCodes – Generic – P2264

P2264 Code - Water in Fuel Sensor Circuit

Quick Answer

The water in fuel sensor is located in the fuel filter housing. Common causes include Fuel contamination, Fuel filter, Faulty Fuel Heater/Water in Fuel Sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P2264 indicates Water in Fuel Sensor Circuit.
Common causes: Common causes include Fuel contamination, Fuel filter, Faulty Fuel Heater/Water in Fuel Sensor.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 37,396

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 27, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2264 Description

The water in fuel sensor is located in the fuel filter housing. The water in fuel sensor has a signal circuit and a low reference circuit. The Engine Control Module (ECM) monitors the signal circuit for a predetermined voltage through serial data from the Fuel Pump Driver Control Module. The Diagnostic Trouble Code (DTC) will be set when the water in fuel sensor signal circuit voltage is outside the expected range for more than 1 s.

OBDII Code P2264 - Water in Fuel Sensor Circuit - AutoCodes.com — P2264 Code - Water in Fuel Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC P2264?

Fuel contamination
Fuel filter
Faulty Fuel Heater/Water in Fuel Sensor
Fuel Heater/Water in Fuel Sensor harness is open or shorted
Fuel Heater/Water in Fuel Sensor circuit poor electrical connection
Faulty Fuel Pump Driver Control Module

How to Fix the DTC P2264?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2264 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2264 code?

Need more information on how to fix the P2264 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2264 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P2264 Buick — Water in Fuel Sensor Circuit
P2264 Cadillac — Water in Fuel Sensor Circuit
P2264 Chevrolet — Water in Fuel Sensor Circuit
P2264 Dodge — Water in Fuel Sensor Circuit
P2264 Ford — Water in Fuel Sensor Circuit
P2264 GMC — Water in Fuel Sensor Circuit
P2264 Jeep — Water in Fuel Sensor Circuit

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2264 Code

1. What does the OBDII code P2264 indicate?

This code indicates that there is a problem with the water in fuel sensor circuit, suggesting that the sensor or its circuit is malfunctioning.

2. What are common symptoms of code P2264?

Symptoms include the water in fuel warning light illuminating, reduced engine performance, poor fuel economy, and in some cases, the engine may stutter or stall.

3. What causes the OBDII code P2264 to be triggered?

Causes can include a faulty water in fuel sensor, corrosion or damage to the sensor's wiring, or a problem with the sensor's connection to the Engine Control Module (ECM).

4. How can I diagnose the cause of code P2264?

Diagnosing this code typically involves using a scan tool to read the ECM's fault codes, inspecting the water in fuel sensor and its connections for damage or corrosion, and checking the sensor's resistance with a multimeter.

5. What repairs can fix the P2264 code?

Repairs might include replacing the water in fuel sensor, repairing or replacing damaged wiring or connectors in the sensor circuit, or resetting the sensor and ECM after draining any water from the fuel filter housing.

6. Is it safe to drive with the P2264 code?

While you might be able to drive with this code active, it is not recommended. Water in the fuel can lead to serious engine damage, so addressing the issue promptly is crucial.

7. What is the role of the water in fuel sensor in a vehicle?

The water in fuel sensor detects water in the fuel filter housing and alerts the driver by activating a warning light. This helps prevent water from entering the engine, which can cause significant damage.

8. Can fixing code P2264 improve fuel efficiency?

Yes, resolving issues related to water in the fuel system can restore normal fuel efficiency and engine performance, as water contamination typically hampers these aspects.

9. What tools are needed to confirm a P2264 code?

Tools needed might include a diagnostic scan tool to read the ECM codes, a multimeter for electrical testing, and basic hand tools to access the sensor for inspection or replacement.