Hitachi MAF0049 Mass Air Flow Sensor

Hitachi MAF0049 Mass Air Flow Sensor

Hitachi MAF0049 is a new mass air flow sensor built for accurate air measurement and stable engine management. It is a direct-fit emission control sensor for select Toyota Tacoma applications, with OE-style calibration and application-specific testing.

Key Features

• Measures incoming air volume and air characteristics for precise fuel control
• 100% air flow tested for application-specific performance
• Precision sensing elements and quality components for durability
• Calibrated for the listed vehicle applications
• Protected circuitry and contaminant bypass port design, where applicable
• New sensor; wiring harness not included

Detailed Description

The Hitachi MAF0049 mass air flow sensor is engineered for emission control systems that rely on accurate airflow data. On 1999-2004 Toyota Tacoma models, this sensor helps the engine control module calculate fuel delivery based on real-time intake air measurement. Hitachi uses OE-approved manufacturing practices, and the MAF0049 is calibrated for each application to support factory emission standards. This part cross-references Delphi AF10455 for the same application.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or poor throttle response from incorrect fuel metering
• Check engine light concerns related to MAF sensor performance
• Reduced fuel economy from air/fuel imbalance
• Emission test failures tied to faulty intake air measurement

Installation Notes and Tips

• Fits 1999 Toyota Tacoma, N/A; Grade: Actual OE; Terminal Quantity: 5; Housing Included: No; Terminal Type: Blade; From 08/1999
• Fits 2000-2003 Toyota Tacoma, N/A; Grade: Actual OE; Terminal Quantity: 5; Housing Included: No; Terminal Type: Blade
• Fits 2000-2004 Toyota Tacoma, N/A; Grade: Actual OE; Terminal Quantity: 5; Housing Included: No; Terminal Type: Blade; without Housing; Sensor Only
• Verify the connector style and housing configuration before installation
• Inspect the intake tract for leaks or contamination that can affect sensor readings
• Clear diagnostic trouble codes after replacement and confirm idle quality

Quality Assurance

Hitachi manufactures this MAF sensor as a new OE-style replacement with application-specific calibration and airflow testing. The design uses durable components and protected circuitry to support reliable operation in the listed Toyota Tacoma fitments.