Spectra MP144 Manifold Absolute Pressure Sensor

Spectra MP144 Manifold Absolute Pressure Sensor

The Spectra MP144 manifold absolute pressure sensor is built for direct replacement service on a wide range of GM vehicles. It is engineered to meet or exceed OE specifications for fit, form, and function, helping restore accurate manifold pressure signal input to the engine control system.

Compatible with applications such as Chevrolet Silverado, GMC Sierra, Tahoe, Yukon, and Cadillac Escalade models, this MAP sensor supports precise engine management across many 2008-2024 vehicles.

Key Features

• Manifold absolute pressure sensor for emission control and engine management systems
• OE-style fit, form, and function for direct replacement service
• Designed for broad coverage on Chevrolet, GMC, Cadillac, Buick, Saab, Hummer, and Isuzu applications
• Cross-references Standard Ignition AS394
• Part number MP144 for catalog and service identification

Detailed Description

The Spectra MP144 MAP sensor measures intake manifold pressure and sends that data to the vehicle’s engine control module for fuel and load calculations. Accurate sensor output is important for drivability, throttle response, and emissions-related engine control. This part is a strong match for GM truck, SUV, and car platforms including Silverado 1500, Sierra 1500, Tahoe, Yukon, Camaro, Corvette, and Express van applications. If you are replacing a failing MAP sensor on a Chevrolet Silverado 2500 HD or GMC Sierra 3500 HD, MP144 provides a direct-fit service solution.

This part cross-references Standard Ignition AS394 for the same application. The MP144 designation is also useful when verifying service records or matching an existing sensor by part number.

What It Helps Address

• Rough idle caused by inaccurate manifold pressure readings
• Hard starting or extended crank conditions
• Reduced engine performance from incorrect load data
• Check engine light concerns related to MAP sensor faults
• Fuel trim and drivability issues tied to sensor signal errors

Installation Notes and Tips

Verify the connector style and mounting location before installation. Fitment varies by platform, and some applications place the sensor in the throttle body, air cleaner, or air cleaner pipe. Confirm the vehicle year, make, and model against the listed fitment before ordering. After installation, clear diagnostic trouble codes and confirm stable idle and sensor readings with a scan tool.

Quality Assurance

Spectra states that this replacement sensor is built to meet or exceed OE specifications for fit, form, and function.