Delphi PS20123 Manifold Absolute Pressure Sensor

Delphi MAP Sensor PS20123 Overview

The Delphi PS20123 is a manifold absolute pressure sensor built for accurate engine load and intake pressure readings. It uses a 5-volt, 3-terminal blade connection with a bolt-on mount and a single oval connector for a direct OE-style replacement on select Mercedes-Benz applications.

Compatible with 2019-2022 Mercedes-Benz C300, 2020-2022 Mercedes-Benz E350, 2020-2022 Mercedes-Benz GLC300, and 2020-2022 Mercedes-Benz GLE350, this Delphi MAP sensor supports precise signal output for drivability and emissions control. The PS20123 is a standard replacement part designed around OE calibration practices.

Key Features

• Delphi part number PS20123
• Manifold Absolute Pressure Sensor for emission control systems
• 5-volt voltage type sensor
• 3 blade terminals with male connector and male terminals
• Single oval connector, black housing, black connector color
• Bolt-on mount with one port and plastic body construction
• Standard replacement grade for OE-style service
• Tested and calibrated to OE standards

Detailed Description

Delphi PS20123 is engineered for vehicles that rely on accurate manifold pressure data to manage fuel delivery, load calculation, and engine response. Delphi validates its sensors using OE development methods and calibration standards, helping ensure consistent readings across the supported Mercedes-Benz C300, E350, GLC300, and GLE350 applications. This part cross-references Standard Ignition AS647 for the same application.

As a replacement MAP sensor, the PS20123 is built with a black plastic housing, one connector, one port, and a bolt-on design for straightforward service on the listed vehicles. If you are searching for a Mercedes-Benz MAP sensor replacement, Delphi PS20123 offers the correct electrical and mounting configuration for the confirmed fitments.

Common Issues This Part Can Address

• Incorrect manifold pressure signal readings
• Rough idle or unstable engine operation caused by faulty MAP data
• Poor throttle response related to inaccurate load input
• Check engine light concerns tied to MAP sensor faults
• Fuel trim and drivability problems from a failing pressure sensor

Installation Notes and Tips

Verify connector shape, terminal count, and mount style before installation. The PS20123 uses a 5-volt, 3-terminal blade connection with a male oval connector and bolt-on mounting, so the replacement should match the original sensor configuration on the vehicle. Inspect the intake tract and electrical connector for damage or contamination before installing the new sensor.

For best results, clear any stored diagnostic trouble codes after installation and confirm live data readings with a scan tool. This helps verify that the new MAP sensor is reporting correctly on the Mercedes-Benz C300, E350, GLC300, or GLE350 application.

Quality Assurance

Delphi sensors are developed with stringent OE validation methods and calibrated to OE standards to support accurate readings and dependable service. That manufacturing approach helps reduce repeat repairs and supports consistent performance in emission control applications.