Acura RL 2005-2012 Emissions & Sensors Specifications

The emissions sensors in the 2005-2012 Acura RL include oxygen sensors, temperature sensors, and airflow sensors. These sensors are compatible with the 3.5L V6 engine and are designed to meet EPA emissions standards. The oxygen sensors are heated two-wire types, while the airflow sensors use a hot-wire design. Ensure compatibility with OEM or aftermarket parts designed specifically for the Acura RL model years 2005-2012.

Regular inspection of emissions sensors is essential. Oxygen sensors should be checked every 30,000 to 50,000 miles, and airflow sensors should be inspected every 15,000 miles. Clean or replace sensors as needed, ensuring no contamination from oil or dirt. Follow the recommended maintenance schedule in the service manual for optimal performance.

To replace an emissions sensor, disconnect the battery, locate the sensor, and remove the electrical connector. For oxygen sensors, use a wrench to remove the sensor from the exhaust system. Install the new sensor by reversing the steps, ensuring proper torque specifications. For airflow sensors, remove mounting screws, disconnect the electrical connector, and install the new sensor securely.

If the Check Engine light illuminates, use an OBD-II scanner to identify trouble codes. Common codes include P0130-P0142 for oxygen sensors and P0100-P0112 for airflow sensors. Check for loose connections, contamination, or damage. Test sensor resistance and voltage using a multimeter. Replace faulty sensors and clear codes to verify repairs.

Ensure proper engine tuning and fuel injection system function. Regularly inspect and clean sensors to prevent contamination. Use high-quality fuel and avoid aggressive driving to reduce sensor wear. Replace sensors at recommended intervals to maintain accurate readings and emissions compliance.