Hella 009403201 Manifold Absolute Pressure Sensor

HELLA MAP Sensor for Subaru Applications

Restore accurate engine load readings with this HELLA Manifold Absolute Pressure Sensor, part number 009403201. It provides real-time intake pressure data to support precise fuel mapping and turbo boost control on select Subaru models, including BRZ, Forester, Impreza, Legacy, Outback, and XV Crosstrek.

• Standard replacement MAP sensor for OE-style service
• 3-pin connector with bolted mounting design
• Includes seal for proper installation
• Built to HELLA OE precision standards for consistent signal output
• Supports fuel delivery and boost management based on manifold pressure

How It Works

The HELLA 009403201 Manifold Absolute Pressure Sensor measures intake manifold pressure and sends that data to the engine control system. On Subaru BRZ, Forester, Impreza, Legacy, Outback, and XV Crosstrek applications, accurate pressure feedback helps the ECU calculate air load, adjust fueling, and manage turbo boost where equipped. This part cross-references Facet 10.3394 for the same application.

Common Symptoms It Can Address

• Rough idle or unstable engine operation
• Incorrect fuel mixture or poor throttle response
• Reduced power from inaccurate manifold pressure readings
• Check engine light related to MAP sensor performance
• Boost control issues on turbocharged applications

Installation Notes

Professional installation is recommended. This sensor uses a bolted mounting style and a 3-pin connector, and the seal is included. Verify connector style, mounting location, and OE part match before installation. Assy/disassy by qualified personnel required.

Quality Assurance

HELLA builds this MAP sensor as a standard replacement part with OE-level fit and function in mind. Part number 009403201 is engineered for dependable signal accuracy and long-term service on the listed Subaru fitments.