Standard Ignition AS437 Manifold Absolute Pressure Sensor

Overview of Standard Ignition AS437 Manifold Absolute Pressure Sensor

The Standard Ignition AS437 is a reliable manifold absolute pressure (MAP) sensor designed for select Ford vehicles. This sensor features a female plug-in connector and a single port, ensuring precise fitment and accurate engine performance monitoring for models like the Ford EcoSport, Escape, F-150, Fiesta, Focus, and Transit series.

• Connector Gender: Female for secure connection
• Connector Type: Plug-in for easy installation
• Port Quantity: 1 port for accurate pressure measurement
• Terminal Gender: Male terminals
• Terminal Quantity: 4 terminals for stable electrical contact
• Terminal Type: Blade terminals for durability and reliability

Detailed Product Description

The Standard Ignition AS437 MAP sensor is engineered to measure the absolute pressure inside the intake manifold, providing critical data to the engine control unit (ECU). This data helps optimize fuel delivery and ignition timing, contributing to efficient engine operation. The sensor’s female plug-in connector and four male blade terminals ensure a secure and stable electrical connection, minimizing the risk of signal loss or interference. With a single port design, the sensor accurately detects manifold pressure changes, which is essential for maintaining proper air-fuel mixture and engine performance.

Compatible Ford Models and Applications

This MAP sensor is compatible with a range of Ford vehicles, including the EcoSport, Escape, F-150, Fiesta, Focus, and Transit-150, Transit-250, Transit-350, and Transit-350 HD models. The part number AS437 ensures precise fitment and function within these vehicles’ emission control systems, making it a suitable replacement part for maintaining emission standards and engine efficiency.

Common Issues Addressed by the AS437 MAP Sensor

• Engine stalling or rough idling due to incorrect manifold pressure readings
• Poor fuel economy caused by inaccurate air-fuel mixture adjustments
• Check engine light triggered by faulty sensor signals
• Reduced engine power and performance issues
• Failed emissions tests related to sensor malfunction

Installation Notes and Tips

When installing the Standard Ignition AS437 sensor, ensure the vehicle’s ignition is off and the engine is cool. Disconnect the battery before removing the old sensor to prevent electrical shorts. Carefully unplug the female connector and remove the sensor from the manifold port. Install the new sensor by aligning the single port and securing the plug-in connector firmly. Verify all four blade terminals are properly seated to maintain electrical continuity. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper sensor operation.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The AS437 MAP sensor undergoes rigorous quality control testing to guarantee accurate pressure readings and long service life. This part is backed by a limited warranty, providing coverage against defects in materials and workmanship under normal use conditions.