Standard Ignition AS725 Manifold Absolute Pressure Sensor

Manifold Absolute Pressure Sensor for GM Applications

Standard Ignition AS725 is a manifold absolute pressure sensor built for direct plug-in replacement on a wide range of GM vehicles. It uses a female oval connector with 4 male blade terminals and a black finish for a straightforward OE-style electrical connection.

Compatible with select Buick, Cadillac, Chevrolet, and GMC models, including the Chevrolet Silverado 1500, GMC Sierra 1500, Cadillac XT5, and Chevrolet Blazer. The AS725 part number is also a direct reference for shoppers comparing manifold absolute pressure sensor replacements by OE-style connector design and vehicle coverage.

Key Features

• Manifold Absolute Pressure Sensor for emission control and engine management systems
• Plug-in attachment method for direct replacement installation
• Female oval connector with 1 connector and 4 blade terminals
• Black color/finish
• Standard Ignition AS725 for GM fitments across multiple model years
• Cross-reference part numbers include 2-27459 and EC2239 for the same application

Detailed Description

Standard Ignition AS725 is a MAP sensor used to measure intake manifold pressure so the engine control system can calculate load and adjust fuel and spark strategy. This sensor is listed for 2019-2024 Cadillac CT4, CT5, XT4, XT5, and XT6; 2020-2024 Chevrolet Blazer and Trailblazer; 2023-2024 Chevrolet Colorado and GMC Canyon; 2019-2023 Chevrolet Silverado 1500 and GMC Sierra 1500; and additional Buick and GMC applications. If you are replacing a failing manifold absolute pressure sensor on a Chevrolet Silverado 1500, GMC Sierra 1500, or Cadillac XT5, AS725 provides the connector style and terminal layout needed for a direct-fit service part.

What It Helps Address

• Rough idle caused by incorrect manifold pressure readings
• Hard starting or extended crank conditions
• Check engine light related to MAP sensor circuit faults
• Poor throttle response or inconsistent acceleration
• Fuel mixture and drivability issues tied to inaccurate load data

Installation Notes and Tips

Verify the connector shape, terminal count, and attachment method before installation. AS725 uses a plug-in design with a female oval connector and 4 male blade terminals, so the harness connection should match the original sensor configuration. Confirm vehicle application by year, make, and model before ordering, especially on GM platforms with multiple engine and sensor variants.

Quality Assurance

Standard Ignition supplies replacement engine management components for service applications, and AS725 is cataloged as an emission control sensor built to match listed OE-style fitments. Always confirm the part number AS725 against the original sensor and vehicle application before installation.