Delphi PS20129 Manifold Absolute Pressure Sensor

Delphi PS20129 MAP Sensor Overview

Delphi PS20129 is a manifold absolute pressure sensor built for accurate engine load and intake pressure readings. It uses a 5-volt voltage signal, a 3-terminal blade connection, and a bolt-on mount for a direct standard replacement on select Volvo applications.

Compatible With Volvo S60, S90, V60, V60 Cross Country, V90, V90 Cross Country, XC40, XC60, XC90, S60 Cross Country, S80, and XC70 applications across model years 2015-2021, depending on vehicle configuration.

• 5-volt MAP sensor with voltage output
• Black plastic housing with black connector
• 1 connector, square shape, male connector and male terminals
• 3 blade terminals for OE-style electrical connection
• Bolt-on mount with 1 port
• Standard replacement grade for service repair
• Package contents: manifold absolute pressure sensor

Vehicle Fitment

• Fits 2015-2021 Volvo S60, N/A
• Fits 2017-2021 Volvo S90, N/A
• Fits 2015-2021 Volvo V60, N/A
• Fits 2020-2021 Volvo V60 Cross Country, N/A
• Fits 2017-2018 Volvo V60 Cross Country, N/A
• Fits 2018-2021 Volvo V90, N/A
• Fits 2017-2021 Volvo V90 Cross Country, N/A
• Fits 2019-2021 Volvo XC40, N/A
• Fits 2015-2021 Volvo XC60, N/A
• Fits 2016-2021 Volvo XC90, N/A
• Fits 2017-2018 Volvo S60 Cross Country, N/A
• Fits 2015-2016 Volvo S80, N/A
• Fits 2015-2016 Volvo XC70, N/A

Detailed Description

Delphi PS20129 is engineered to deliver OE-level pressure readings for the engine management system. As a manifold absolute pressure sensor, it reports intake manifold pressure so the ECU can calculate air density, fuel delivery, and load conditions more accurately. Delphi validates and calibrates its sensors to OE standards, which supports consistent signal output and helps reduce repeat repairs.

This Delphi PS20129 MAP sensor cross-references Standard Ignition AS529 for the same application. It is a direct service part for Volvo S60, Volvo XC60, and other listed Volvo models, making it a practical choice when replacing a failing MAP sensor on turbocharged or naturally aspirated engine management systems that rely on precise manifold pressure data.

Common Issues This Part May Resolve

• Rough idle caused by inaccurate manifold pressure readings
• Hesitation or poor throttle response during acceleration
• Check engine light related to MAP sensor performance
• Incorrect fuel mixture calculations from the engine control module
• Driveability concerns tied to unstable intake pressure signal output

Installation Notes and Tips

Verify connector style, terminal count, and mounting style before installation. The Delphi PS20129 uses a single square male connector with 3 blade terminals and a bolt-on design, so the replacement should match the original sensor configuration on the vehicle. Inspect the intake tract and electrical connector for contamination or damage before installing the new sensor.

For best results, clear diagnostic trouble codes after installation and confirm live data readings with a scan tool. This part number, PS20129, is commonly selected for Volvo MAP sensor replacement service where OE-style fit and signal accuracy are required.

Quality Assurance

Delphi sensors are developed and validated using OE-focused testing methods and calibrated to OE standards. That process supports accurate readings and dependable service performance across the listed Volvo fitments, including Volvo S60, Volvo XC60, and related applications.