Delphi PS20128 Manifold Absolute Pressure Sensor

Delphi MAP Sensor PS20128 Overview

Delphi PS20128 is a manifold absolute pressure sensor built for precise engine load and intake pressure measurement. It is a standard replacement part with a 5-volt voltage type design, OE-calibrated output, and a single oval 1-port, 4-pin male connector for a direct-fit style service replacement.

Compatible With Audi A4 allroad, A4 Quattro, A5 Quattro, A5 Sportback, A6 Quattro, Q5, Q5 Sportback, Q7 and Volkswagen Atlas, Atlas Cross Sport, GTI, Jetta, Tiguan, Passat, Beetle, Golf Alltrack, Golf SportWagen, and Golf applications listed below. Delphi PS20128 is also cross-referenced to Standard Ignition AS616 for the same application.

Key Features

• Manifold Absolute Pressure Sensor for engine air pressure monitoring
• 5-volt voltage type with OE-standard calibration
• Black plastic housing with black connector
• Single oval connector, 4 male terminals, 1 port
• Bolt-on mount style for service replacement use
• Standard replacement grade for listed Audi and Volkswagen vehicles
• Package contents: manifold absolute pressure sensor

Detailed Description

Delphi PS20128 is engineered to deliver accurate manifold pressure readings that the engine control system uses for fuel and load calculations. Delphi validates and calibrates its sensors to OE standards, helping maintain consistent signal output and reducing repeat repairs caused by inaccurate sensor data. This MAP sensor is a direct service part for a wide range of turbocharged Audi and Volkswagen models, including Audi A4 allroad, A4 Quattro, A5 Quattro, A5 Sportback, A6 Quattro, Q5, Q5 Sportback, and Q7, plus Volkswagen Atlas, Atlas Cross Sport, GTI, Jetta, Tiguan, Passat, Beetle, Golf Alltrack, Golf SportWagen, and Golf.

Part number PS20128 is a practical choice when replacing a faulty manifold absolute pressure sensor on 2013-2023 Volkswagen Jetta, 2015-2023 Volkswagen GTI, or 2018-2023 Audi Q5 applications, as well as the other listed fitments.

What It Helps Address

• Erratic idle caused by incorrect manifold pressure readings
• Check engine light related to MAP sensor performance
• Hesitation or poor throttle response under load
• Fuel mixture and drivability issues tied to intake pressure signal errors
• Reduced engine efficiency from inaccurate air pressure data

Installation Notes and Tips

Verify connector shape, terminal count, and mount style before installation. PS20128 uses a bolt-on design with a male 4-pin connector and no wiring harness included. Confirm the vehicle application against the fitment list for your exact Audi or Volkswagen model and year before replacing the sensor.

• Fits 2021-2023 Audi A4 allroad
• Fits 2021-2023 Audi A4 Quattro
• Fits 2021-2023 Audi A5 Quattro
• Fits 2021-2023 Audi A5 Sportback
• Fits 2021-2023 Audi A6 Quattro
• Fits 2018-2023 Audi Q5
• Fits 2021-2023 Audi Q5 Sportback
• Fits 2023 Audi Q7
• Fits 2018-2023 Volkswagen Atlas
• Fits 2020-2023 Volkswagen Atlas Cross Sport
• Fits 2015-2023 Volkswagen GTI
• Fits 2013-2023 Volkswagen Jetta
• Fits 2018-2023 Volkswagen Tiguan
• Fits 2014-2022 Volkswagen Passat
• Fits 2013-2019 Volkswagen Beetle
• Fits 2017-2019 Volkswagen Golf Alltrack
• Fits 2015-2019 Volkswagen Golf SportWagen
• Fits 2015-2018 Volkswagen Golf

Quality Assurance

Delphi backs its sensor portfolio with OE development and product validation methods. PS20128 is tested and calibrated to OE standards to support accurate readings in the listed Audi and Volkswagen applications.