Standard Motor Products AS356 Manifold Absolute Pressure MAP Sensor

The Standard Motor Products AS356 is a direct-fit replacement manifold absolute pressure (MAP) sensor engineered to restore precise engine management performance. This OEM-quality sensor accurately converts engine vacuum and manifold pressure into electrical signals that enable the powertrain control module (PCM) to optimize fuel delivery and ignition timing control.

Key Features:

• 3-terminal design with male pin-type terminals and female rectangular connector
• Single vacuum port for manifold pressure monitoring
• Bolt-on installation with integrated mounting bracket
• 100% in-line and end-of-line inspection during manufacturing process
• Black finish polymer construction for durability and corrosion resistance
• Precision robotics assembly ensures consistent quality and performance

How It Works:

The AS356 MAP sensor produces voltage or frequency signals proportional to changes in manifold pressure, allowing the engine computer to measure engine load for proper ignition timing advance and retard. On speed-density fuel injection systems, this sensor also assists the PCM in calculating airflow for accurate fuel metering.

OE Reference Numbers:

Replaces OE numbers 0261230193, 5117545AB, and 68066040AA. This sensor is commonly found on diesel engines, particularly turbocharged applications where it's located on the intake manifold.

Malfunctioning MAP sensors can trigger check engine lights, cause hesitation during acceleration, increase emissions, and reduce overall engine performance. Standard Motor Products has provided trusted OE replacement quality for over 100 years.