Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that a sensor in the engine is reading too high. It's like when your thermometer at home says it's hotter than it actually is.
The P264D code indicates an issue with the rocker arm actuator position sensor circuit, where the voltage is higher than expected.
The rocker arm actuator position sensor monitors the position of the rocker arm actuator. If the sensor circuit voltage is higher than the manufacturer's specified range, the P264D code is triggered. This typically affects Bank 1, which is the side of the engine where cylinder 1 is located.
• Check Engine Light is on
• Engine may run rough or misfire
• Reduced engine performance
• Faulty rocker arm actuator position sensor
• Wiring issues such as short circuits or open circuits
• Poor electrical connection in the sensor circuit
Rocker Arm: A component in the engine that helps open and close the valves.
Actuator: A device that moves or controls a mechanism or system.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the rocker arm actuator position sensor for proper operation.
• Replace the rocker arm actuator position sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Clear the code and test drive to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools (screwdrivers, wrenches)
$150 - $400
Moderate
• Honda Accord
• Honda CR-V
• Acura TSX
• Regularly inspect and maintain engine wiring.
• Ensure all electrical connections are clean and secure.
• Perform routine engine diagnostics.
Sensor Issue
• Do not ignore the Check Engine Light if it appears.
• Have the vehicle inspected by a professional mechanic.
• Avoid driving the vehicle hard until the issue is resolved.
Check with the vehicle manufacturer for warranty coverage on engine components.
This code is commonly seen in vehicles with variable valve timing systems, particularly in Honda and Acura models.
Moderate – It should be addressed soon to avoid potential engine performance issues.
Driving with a Check Engine Light can lead to further vehicle damage and may not comply with emissions regulations.
• Engine at operating temperature
• Vehicle in park or neutral
The rocker arm actuator position sensor is typically located on the engine near the rocker arm assembly.
Q: Can I drive with a P264D code?
A: While you can drive with this code, it's best to have it checked soon to avoid potential engine issues.
Q: How do I clear a P264D code?
A: You can clear the code with an OBD-II scanner, but it's important to fix the underlying issue first.
Budget · Bluetooth scanner
An app-based scanner with repair reports and enhanced system diagnostics on supported vehicles.
Helpful when live data and repair-report guidance can narrow down a drivability issue.
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Specialty · Fuel pressure tester
Helpful for no-start, lean, rich, injector, and fuel-delivery diagnosis.
Useful for checking whether fuel delivery is contributing to the fault.
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Specialty · Compression tester
Useful when misfire, mechanical condition, or low-cylinder-pressure problems are suspected.
Helpful when you need to rule out low compression or mechanical engine problems.
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Fitment Required · Vehicle-fitment part
Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.
Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.
Check the correct plug type, gap, and engine application for your vehicle.
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Fitment Required · Vehicle-fitment part
Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.
Some ignition faults involve coil performance or cylinder-specific coil problems.
Match the coil to your engine and confirm the failed component before ordering.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.