HomeEmission Control > SensorsStandard Ignition AS3 Manifold Absolute Pressure Sensor
Part #: AS3

Standard Ignition AS3 Manifold Absolute Pressure Sensor

27 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Cadillac, Commercial Chassis, DeVille, Eldorado, Fleetwood, and Seville
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Overview of Standard Ignition AS3 Manifold Absolute Pressure Sensor

The Standard Ignition AS3 Manifold Absolute Pressure Sensor is designed for precise engine management in select Cadillac models. This sensor plays a critical role in monitoring manifold pressure to optimize fuel delivery and engine performance.

  • Connector Gender: Female for secure connection
  • Connector Type: Plug in for easy installation
  • Terminal Gender: Male terminals
  • Terminal Quantity: 3 terminals for accurate signal transmission
  • Terminal Type: Bullet style terminals for reliable contact

Detailed Product Description

The AS3 sensor from Standard Ignition is engineered to meet the specifications required by Cadillac vehicles including the Commercial Chassis, DeVille, Eldorado, Fleetwood, and Seville models. Featuring a female plug-in connector and three male bullet terminals, this manifold absolute pressure sensor ensures consistent and accurate data transmission to the engine control unit. The bullet terminal design enhances electrical connectivity and reduces the risk of signal loss or corrosion over time. This sensor is essential for maintaining proper air-fuel mixture and engine efficiency.

Common Applications and Issues Addressed

  • Helps resolve engine stalling or rough idling caused by incorrect manifold pressure readings
  • Addresses poor fuel economy due to inaccurate sensor data
  • Prevents check engine light triggers related to manifold pressure sensor faults
  • Improves throttle response and overall engine performance
  • Supports emission control compliance by providing accurate sensor feedback

Installation Notes and Tips

Installation of the Standard Ignition AS3 sensor requires disconnecting the battery and locating the existing manifold absolute pressure sensor on the intake manifold. The female plug-in connector should be carefully detached from the old sensor, and the new sensor’s bullet terminals aligned properly to ensure a secure connection. Avoid forcing the terminals to prevent damage. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The AS3 Manifold Absolute Pressure Sensor undergoes rigorous quality control testing. This part is backed by a limited warranty covering defects in materials and workmanship, providing confidence in its long-term functionality.

BrandStandard Ignition
Part NumberAS3
Connector GenderFemale
Connector TypePlug In
Terminal GenderMale
Terminal TypeBullet

This part fits 27 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1984CadillacCommercial Chassis6.0LV8N/A
1984CadillacDeVille4.1LV8N/A
1984CadillacEldoradoGASN/A
1984CadillacFleetwood6.0LV8N/A
1984CadillacFleetwood4.1LV8N/A
1983CadillacCommercial Chassis6.0LV8N/A
1983CadillacDeVille4.1LV8N/A
1983CadillacEldoradoGASN/A
1983CadillacFleetwood4.1LV8N/A
1983CadillacFleetwood6.0LV8N/A
1982CadillacCommercial Chassis6.0LV8N/A
1982CadillacDeVille4.1LV8N/A
1982CadillacDeVille4.1LV6N/A
1982CadillacEldoradoGASN/A
1982CadillacFleetwood4.1LV6N/A
1982CadillacFleetwood4.1LV8N/A
1982CadillacFleetwood6.0LV8N/A
1982CadillacSevilleGASN/A
1981CadillacCommercial Chassis6.0LV8N/A
1981CadillacDeVille6.0LV8N/A
1981CadillacDeVille4.1LV6N/A
1981CadillacEldoradoGASN/A
1981CadillacFleetwood4.1LV6N/A
1981CadillacFleetwood6.0LV8N/A
1981CadillacSevilleGASN/A
1980CadillacEldoradoGASN/A
1980CadillacSevilleGASN/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:

12219931145-40716006832180022-1962313895S115174285EC1603ECE1535MAPA154PS10056

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