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Spectra MA463 Mass Air Flow Sensor
| Brand | Spectra MA463 |
|---|---|
| Fits | Subaru · 12 vehicles |
Fast signal response. Programmable ceramic circuit board helps the sensor react quickly and consistently.
Heat and vibration protection. Premium silicon coating shields the circuit from harsh underhood conditions.
Platinum sensing elements. All-platinum resistance thermometer sensors improve signal consistency.
Cross-references Hitachi Automotive MAF0124, Standard Ignition MAS0518 and 22680AA410 for the same application. See all 4.
Spectra MA463 Mass Air Flow Sensor
The Spectra MA463 mass air flow sensor is built for precise airflow measurement and stable engine management. It is a direct-fit emission control sensor for select Subaru applications, including WRX and Forester models.
Key Features
- Programmable ceramic circuit board with premium silicon coating for protection against under-hood heat swings and vibration
- Fast signal response for consistent airflow readings
- All-platinum resistance thermometer sensor design
- Emission control replacement for Subaru WRX and Subaru Forester applications
- Part number MA463 for easy identification and ordering
Detailed Description
The Spectra MA463 is a mass air flow sensor engineered to measure incoming air accurately so the engine control system can calculate fuel delivery and drivability inputs. Its circuit board design is built to handle temperature fluctuation and road vibration, while the platinum sensing elements support responsive signal output. This part cross-references Hitachi Automotive MAF0124 and Standard Ignition MAS0518 for the same application. Fits 2021 Subaru WRX, N/A. Fits 2015-2020 Subaru WRX, N/A. Fits 2014-2018 Subaru Forester, N/A. The MA463 is a practical replacement choice when servicing Subaru WRX and Subaru Forester air metering systems.
What It Helps Address
- Rough idle caused by inaccurate airflow readings
- Hesitation or poor throttle response from a failing MAF sensor
- Check engine light concerns related to air metering faults
- Fuel trim issues tied to incorrect intake air measurement
- Driveability problems after sensor contamination or electrical wear
Installation Notes and Tips
Verify the connector style and OE reference before installation. Inspect the intake tube, air filter housing, and wiring connector for contamination or damage before replacing the sensor. After installation, clear diagnostic trouble codes and confirm idle quality and airflow data with a scan tool.
Quality Assurance
Spectra uses a protected circuit design and platinum sensing technology to support consistent sensor output in demanding under-hood conditions.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2021 | Subaru | WRX | 2.0L | H4 | N/A | — |
| 2020 | Subaru | WRX | 2.0L | H4 | N/A | Compatible with multiple Mass Air Flow Sensors. |
| 2019 | Subaru | WRX | 2.0L | H4 | N/A | Compatible with multiple Mass Air Flow Sensors. |
| 2018 | Subaru | Forester | 2.0L | H4 | N/A | Compatible with multiple Mass Air Flow Sensors. |
| 2018 | Subaru | WRX | 2.0L | H4 | N/A | Compatible with multiple Mass Air Flow Sensors. |
| 2017 | Subaru | Forester | 2.0L | H4 | N/A | Compatible with multiple Mass Air Flow Sensors. |
| 2017 | Subaru | WRX | 2.0L | H4 | N/A | Compatible with multiple Mass Air Flow Sensors. |
| 2016 | Subaru | Forester | 2.0L | H4 | N/A | Compatible with multiple Mass Air Flow Sensors. |
| 2016 | Subaru | WRX | 2.0L | H4 | N/A | Compatible with multiple Mass Air Flow Sensors. |
| 2015 | Subaru | Forester | 2.0L | H4 | N/A | Compatible with multiple Mass Air Flow Sensors. |
| 2015 | Subaru | WRX | 2.0L | H4 | N/A | Compatible with multiple Mass Air Flow Sensors. |
| 2014 | Subaru | Forester | 2.0L | H4 | N/A | Compatible with multiple Mass Air Flow Sensors. |
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