Spectra MP154 Manifold Absolute Pressure Sensor

Overview

The Spectra MP154 manifold absolute pressure sensor is built to meet or exceed OE specifications for fit, form, and function. It is a direct replacement option for Subaru and Saab applications that rely on accurate intake manifold pressure data for engine management.

This part cross-references Standard Ignition AS351 for the same application.

Key Features

• OE-style replacement sensor for manifold pressure measurement
• Built to match factory fit, form, and function requirements
• Supports precise engine control system input
• Compatible with a wide range of Subaru Legacy, Outback, Impreza, Forester, Tribeca, and B9 Tribeca applications

Detailed Description

The Spectra MP154 is a manifold absolute pressure sensor used in engine management systems to report intake manifold pressure to the control module. Accurate pressure input helps the system calculate load and adjust fueling and ignition strategy. Fits 2003-2019 Subaru Legacy, N/A; Fits 2004-2019 Subaru Outback, N/A; Fits 2008-2014 Subaru Tribeca, N/A; Fits 2005-2012 Subaru Impreza, N/A; Fits 2005-2010 Subaru Forester, N/A; Fits 2006-2007 Subaru B9 Tribeca, N/A; Fits 2005-2006 Saab 9-2X, N/A. The MP154 is a practical replacement for vehicles that need a sensor matched to OE specifications, including Subaru Legacy and Subaru Outback applications.

Common Issues It May Address

• Incorrect manifold pressure signal to the engine control module
• Rough idle caused by inaccurate load calculation
• Driveability problems related to faulty sensor input
• Check engine light conditions tied to pressure sensor performance
• Poor fuel and ignition control from inconsistent manifold readings

Installation Notes and Tips

Verify connector style, mounting location, and application details before installation. Confirm the part number MP154 against the original sensor and vehicle service information to ensure proper fitment. After installation, clear diagnostic trouble codes and recheck system operation.

Quality Assurance

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