NTK MA0046 Manifold Absolute Pressure Sensor

NTK MAP Sensor for Subaru Applications

The NTK Manifold Absolute Pressure Sensor MA0046 is a direct-fit technical sensor for select Subaru vehicles, including WRX STI, Impreza, and Outback applications. Built to OE specifications, it supports accurate manifold pressure input for engine management on covered vehicles.

Key Features

• NTK Manifold Absolute Pressure Sensor, part number MA0046
• 1 rectangular female connector with 4 male terminals
• 1 port design with blade terminal type
• OE-style sensor construction for import and domestic coverage
• Engineered and tested under thermal shock, vibration, and OBD verification conditions
• Part of NTK’s technical sensor line from the Sensor Specialist brand family

Product Line Overview

NTK Manifold Absolute Pressure Sensor products are part of NTK’s broader technical sensor lineup, developed from the company’s OE experience in ignition and oxygen sensor categories. The MA0046 reflects that focus on application coverage and OE-level fitment for Subaru vehicles, including 2013-2019 Subaru WRX STI, 2008-2014 Subaru Impreza, and 2011 Subaru Outback.

Detailed Description

The MA0046 is a manifold absolute pressure sensor used by the engine control system to read intake manifold pressure and help the ECU manage fueling and load calculations. For drivers searching for a Subaru WRX STI MAP sensor, Subaru Impreza manifold pressure sensor, or 2011 Subaru Outback MAP sensor replacement, this NTK part provides a direct replacement option backed by NTK’s OE-focused sensor engineering. This part cross-references Standard Ignition AS466 for the same application.

What It Helps Address

• Erratic idle caused by inaccurate manifold pressure readings
• Check engine light related to MAP sensor circuit or performance faults
• Hard starting or rough running tied to incorrect engine load data
• Reduced throttle response from faulty intake pressure input
• Fuel trim issues caused by a failing manifold absolute pressure sensor

Installation Notes and Tips

Verify connector shape, terminal count, and port configuration before installation. Confirm the vehicle application by year and model: Fits 2013-2019 Subaru WRX STI, N/A; Fits 2008-2014 Subaru Impreza, N/A; Fits 2011 Subaru Outback, N/A. Inspect the intake system and electrical connector for damage before replacing the sensor, and clear diagnostic trouble codes after installation if required by the repair procedure.

Quality Assurance

NTK manufactures this sensor to meet or exceed OE specifications and validates technical sensors through thermal shock, vibration, and OBD verification testing. With more than 80 years of automotive experience behind the NGK family of products, NTK supports import and domestic vehicle coverage with OE application technology.