P264D Fault Code

A Rocker Arm Actuator Position Sensor Circuit High Bank 1

• What does that mean?
• Symptoms
• Causes
• Solutions

The P264D fault code indicates a problem with the Rocker Arm Actuator Position Sensor Circuit on Bank 1 of the engine. This component is responsible for controlling the variable valve timing (VVT) system, ensuring optimal engine performance and efficiency. When this circuit is registering a high voltage signal, it can lead to incorrect valve timing adjustments.

What are the symptoms of the P264D code?

Drivers may notice a variety of symptoms associated with a P264D fault code, such as:

• Reduced engine performance and acceleration issues.
• Poor fuel economy due to inefficient engine timing.
• Unusual engine noises, especially during acceleration or deceleration.
• The check engine light illuminated on the dashboard, indicating a fault.

What causes the P264D code?

Several factors can trigger a P264D fault code, including:

• A faulty rocker arm actuator position sensor that provides incorrect readings.
• Damaged wiring or connectors in the rocker arm actuator circuit.
• A malfunctioning engine control module (ECM) that fails to interpret sensor signals correctly.
• Low engine oil levels or poor oil quality, affecting the actuator's performance.

How to fix P264D?

To resolve a P264D fault code, consider the following steps:

• Inspect and repair or replace any damaged wiring and connectors in the rocker arm actuator circuit.
• Test the rocker arm actuator position sensor and replace it if it's faulty.
• Ensure the engine oil level is adequate and its quality meets manufacturer specifications.
• Reset the fault codes and perform a test drive to ensure the issue is resolved.