Delphi PS20109 Manifold Absolute Pressure Sensor

Delphi MAP Sensor PS20109 Overview

Delphi PS20109 is a manifold absolute pressure sensor built for accurate engine load and intake pressure readings. It is a standard replacement part with OE-calibrated testing, making it a direct choice for Ram 2500 and Ram 3500 applications that rely on precise sensor input for drivability and emissions control.

This Delphi manifold absolute pressure sensor PS20109 uses a 5V design with a 4-pin male terminal layout, one black rectangular connector, and a bolt-on mount. The black plastic housing and 3-port configuration support a clean OE-style fit in the intake system.

Key Features

• Part number: PS20109
• Manifold Absolute Pressure Sensor for emission control systems
• 5V sensor with 4 terminals
• 1 black male connector, rectangular shape
• Bolt-on mount with 3 ports
• Standard replacement grade
• Black plastic housing
• Tested and calibrated to OE standards

Detailed Product Description

Delphi PS20109 is engineered for vehicles that depend on accurate manifold pressure data to manage fuel delivery, load calculation, and emissions performance. Delphi validates its sensors using OE development methods and calibration standards, helping ensure consistent readings across the operating range. For Ram 2500 and Ram 3500 owners, this MAP sensor provides a direct replacement option that matches the original style of connection and mounting.

This part cross-references Standard Ignition AS413 for the same application. If you are replacing a failing MAP sensor on a 2011-2018 Ram 2500 or 2011-2018 Ram 3500, PS20109 is built to align with the vehicle’s sensor requirements and restore accurate manifold pressure feedback. It also fits 2008-2010 Dodge Ram 2500 and 2008-2010 Dodge Ram 3500.

What It Helps Address

• Rough idle caused by inaccurate manifold pressure readings
• Check engine lights related to MAP sensor performance
• Fuel trim issues from incorrect engine load data
• Hesitation or poor throttle response under acceleration
• Emissions control faults tied to sensor signal errors

Installation Notes

Verify connector shape, terminal count, and mount style before installation. PS20109 uses a bolt-on design with a single rectangular connector, so matching the original sensor configuration is important for proper fitment. Confirm the application against the vehicle’s year, make, and model before replacing the sensor on Ram 2500 or Ram 3500 trucks.

Quality Assurance

Delphi backs this sensor with OE-focused development and product validation methods. Each sensor is tested and calibrated to OE standards to support accurate readings and reduce repeat repairs.

• Fits 2011-2018 Ram 2500, N/A
• Fits 2011-2018 Ram 3500, N/A
• Fits 2008-2010 Dodge Ram 2500, N/A
• Fits 2008-2010 Dodge Ram 3500, N/A