Standard Ignition AS644 Manifold Absolute Pressure Sensor

Overview of Standard Ignition AS644 Manifold Absolute Pressure Sensor

The Standard Ignition AS644 Manifold Absolute Pressure (MAP) Sensor is designed for precise engine management in select Mazda vehicles. This sensor plays a critical role in monitoring manifold pressure to optimize fuel delivery and engine performance.

• Connector Gender: Female
• Connector Quantity: 1
• Connector Type: Plug in
• Terminal Gender: Male
• Terminal Quantity: 4
• Terminal Type: Blade

Technical Details and Compatibility

The AS644 MAP sensor features a single female plug-in connector with four male blade terminals, ensuring secure and reliable electrical connections. Its design supports accurate pressure readings essential for engine control units to adjust air-fuel mixture and ignition timing. This sensor is compatible with various Mazda models, including Mazda 3, Mazda 6, CX-5, CX-9, CX-30, and CX-50, making it suitable for drivers seeking a direct replacement part that meets OEM specifications.

Function and Common Applications

The manifold absolute pressure sensor measures the pressure inside the intake manifold, providing data that helps regulate engine performance and emissions. It is commonly used to address issues such as:

• Erratic engine idling or stalling
• Poor fuel economy or increased emissions
• Check engine light triggered by pressure sensor faults
• Reduced engine power or hesitation during acceleration
• Difficulty starting the engine

Installation Notes and Tips

When installing the Standard Ignition AS644 sensor, ensure the connector is fully seated and the blade terminals are free of corrosion or damage. It is recommended to disconnect the battery before installation to prevent electrical shorts. Verify sensor calibration and clear any diagnostic trouble codes after replacement to restore proper engine function.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The AS644 MAP sensor undergoes rigorous testing to ensure accuracy and longevity. Warranty coverage details should be confirmed with the product documentation or supplier.