HomeEmission Control > SensorsDelphi PS10121 Manifold Absolute Pressure Sensor
Part #: PS10121

Delphi PS10121 Manifold Absolute Pressure Sensor

21 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Cadillac and Buick, CTS, STS, LaCrosse, Rendezvous, and SRX
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Delphi Manifold Absolute Pressure Sensor Overview

The Delphi PS10121 Manifold Absolute Pressure (MAP) Sensor is designed for precise engine management in select Buick and Cadillac models. This sensor ensures accurate air pressure readings within the intake manifold, supporting optimal engine performance and emissions control.

  • Connector Color: Black for easy identification
  • Terminal Type: Blade terminals for secure electrical connection
  • Single rectangular female connector with three male terminals
  • Bolt-on mount type for straightforward installation
  • Durable plastic body material for corrosion resistance
  • Includes instruction sheet for installation guidance

Technical Details and Compatibility

The Delphi PS10121 MAP sensor features a black rectangular female connector with three male blade terminals, ensuring reliable electrical contact. Its bolt-on mounting design allows for a secure fit in the intake manifold area. Constructed with a plastic body, this sensor resists environmental wear and maintains consistent performance. This part is compatible with various Buick and Cadillac vehicles, including the Buick LaCrosse and Rendezvous, as well as Cadillac CTS, SRX, and STS models. The PS10121 sensor is engineered to meet OEM specifications, providing accurate manifold pressure data critical for engine control units.

Common Applications and Problem Resolution

  • Helps resolve engine stalling or rough idling caused by incorrect manifold pressure readings
  • Addresses poor fuel economy linked to faulty MAP sensor data
  • Corrects issues with engine hesitation or reduced power output
  • Supports proper emissions control by providing accurate sensor input
  • Prevents check engine light triggers related to manifold pressure sensor faults

Installation Notes and Tips

Installation of the Delphi PS10121 sensor requires removal of the old sensor from the intake manifold, followed by securing the new sensor using the bolt-on mount. Ensure the black rectangular connector is fully seated to avoid electrical issues. Handle the sensor carefully to prevent damage to the plastic body and terminals. Refer to the included instruction sheet for detailed installation steps and torque specifications.

Quality Assurance and Warranty

Delphi manufactures the PS10121 MAP sensor to meet stringent quality standards, ensuring reliable performance in Buick and Cadillac vehicles. The sensor undergoes rigorous testing to verify durability and accuracy. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects to provide confidence in product reliability.

BrandDelphi
Part NumberPS10121
Body MaterialPlastic
Connector ColorBlack
Connector GenderFemale
Connector Quantity1
Connector ShapeRectangle
Mount TypeBolt-On
Package ContentsManifold Absolute Pressure Sensor, Instruction Sheet
Terminal GenderMale
Terminal Quantity3
Terminal TypeBlade

This part fits 21 vehicles. Search below:

YearMakeModelPositionNotes
2009CadillacCTSN/A
2009CadillacSTSN/A
2008BuickLaCrosseN/A
2008CadillacCTSN/A
2008CadillacSTSN/A
2007BuickLaCrosseN/A
2007CadillacCTSN/A
2007CadillacSTSN/A
2006BuickLaCrosseN/A
2006BuickRendezvousN/A
2006CadillacCTSN/A
2006CadillacSRXN/A
2006CadillacSTSN/A
2005BuickLaCrosseN/A
2005BuickRendezvousN/A
2005CadillacCTSN/A
2005CadillacSRXN/A
2005CadillacSTSN/A
2004BuickRendezvousN/A
2004CadillacCTSN/A
2004CadillacSRXN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

12575467220315AS305EC1785SU9489

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.