Standard Ignition AS351 Manifold Absolute Pressure Sensor

Reliable Manifold Absolute Pressure Sensor for Subaru Vehicles

The Standard Ignition AS351 Manifold Absolute Pressure Sensor is designed to provide accurate pressure readings for optimal engine performance. Specifically compatible with Subaru B9 Tribeca, Legacy, Outback, and Tribeca models, this sensor ensures precise air intake monitoring essential for emission control systems.

• Direct replacement for OEM manifold absolute pressure sensor
• Compatible with Subaru B9 Tribeca, Legacy, Outback, and Tribeca models
• Part number AS351 for easy identification and fitment
• Ensures accurate manifold pressure readings for engine control
• Supports emission control system efficiency and engine performance

Product Details and Compatibility

The Standard Ignition AS351 sensor is engineered to meet the specifications required by Subaru vehicles including the B9 Tribeca, Legacy, Outback, and Tribeca. This sensor measures the absolute pressure inside the intake manifold, providing critical data to the engine control unit (ECU). Accurate pressure readings help regulate fuel injection and ignition timing, which are vital for maintaining emission standards and engine efficiency. The AS351 part number corresponds to this specific sensor model, ensuring proper fitment and function within the designated Subaru models.

Common Applications and Problem Resolution

This manifold absolute pressure sensor is used primarily to monitor intake manifold pressure and assist in engine management. It can help address several issues, including:

• Erratic engine idling or stalling
• Poor fuel economy due to incorrect air-fuel mixture
• Check engine light triggered by faulty pressure readings
• Reduced engine power or hesitation during acceleration
• Failed emissions tests related to sensor malfunction

Installation Notes and Tips

Installation of the Standard Ignition AS351 sensor should be performed with care to avoid damage. Before installation, ensure the engine is cool and disconnect the battery to prevent electrical shorts. Remove the old sensor carefully, noting the orientation and connector type. Install the new sensor securely, making sure the electrical connector is fully seated. After installation, clear any diagnostic trouble codes and verify sensor operation through a scan tool or test drive.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The AS351 Manifold Absolute Pressure Sensor undergoes rigorous quality control to ensure consistent operation. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in materials and workmanship to support customer confidence in the product.