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 the car's computer is having trouble getting a steady signal from a sensor that helps control parts of the engine's valves. It's like a light switch that keeps flickering on and off when it should stay steady.
The P264E code indicates that the signal from the rocker arm actuator position sensor is not stable, which can affect the engine's performance.
The rocker arm actuator position sensor is responsible for monitoring the position of the rocker arm, which helps control the opening and closing of the engine's valves. When the sensor's signal is intermittent or erratic, it can cause incorrect valve timing, leading to performance issues.
• Check Engine Light illuminated
• Rough engine idle
• Decreased engine performance
• Faulty rocker arm actuator position sensor
• Damaged or corroded wiring/connectors
• ECU (Engine Control Unit) malfunction
Rocker Arm: A component in the engine that helps open and close the valves.
Actuator: A device that causes a machine or other device to operate.
• 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 faulty rocker arm actuator position sensor.
• Repair or replace damaged wiring/connectors.
• Reprogram or replace the ECU if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$150 - $400
Moderate
• Honda Accord
• Honda Civic
• Acura TSX
• Regularly inspect and maintain engine sensors.
• Keep electrical connections clean and secure.
• Perform periodic engine diagnostics.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional mechanic.
• Avoid driving aggressively until the issue is resolved.
Check with the vehicle manufacturer for specific warranty coverage related to engine sensors.
This code is commonly associated with vehicles that have variable valve timing systems, which rely on precise sensor inputs.
Moderate – While the vehicle may still be drivable, it is important to address this issue to prevent potential engine damage.
Driving with a malfunctioning sensor can lead to increased emissions and may not comply with local environmental regulations.
• Engine at operating temperature
• Vehicle in Park or Neutral
The rocker arm actuator position sensor is typically located on the cylinder head, near the rocker arm assembly.
Q: Can I drive with a P264E code?
A: It's possible to drive short distances, but it's best to have the issue diagnosed and repaired to avoid further engine problems.
Q: How can I prevent this code from appearing again?
A: Regular maintenance and inspections of the engine's sensors and electrical connections can help prevent this issue.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.