AdvanEX Mass Air Flow Sensor MAF for Toyota/Lexus/Scion — 22204-31020 New OEM-Fit, Direct Swap

If your vehicle shows rough idle, reduced fuel economy, or a check engine light related to airflow measurement, a failing MAF sensor is a common cause. This AdvanEX sensor is built to match OEM fit and function for a wide range of Toyota, Lexus and Scion models, replacing part numbers such as 22204-0T010 and 22204-31020. It ships new (not rebuilt) and is designed for a straightforward swap with existing wiring and airbox interfaces.

How do I confirm this AdvanEX MAF fits my car?

Verify vehicle compatibility by matching your current part number or cross-reference your car’s model and year against the interchange list. Compare the connector style and mounting points visually to ensure an identical fit before purchasing.

• Cross-replaces OE numbers: 22204-0H010, 22204-31020, 22204-31010, 22204-0T010 and many others.
• Common fitment: Toyota Camry, Corolla, Highlander, RAV4, Avalon, Matrix, Sienna, Venza.
• Lexus and Scion coverage: ES350, GS350, IS350, RX350, and Scion TC/XB/XD variations.
• Always confirm fitment by checking your original sensor’s part number and connector type.

What improvements should I expect after installing this MAF sensor?

Replacing a faulty MAF sensor helps the engine control unit receive accurate airflow readings again, which can normalize fuel trim and engine performance. Restoring correct airflow data may reduce hesitation, stabilize idle, and improve responsiveness under acceleration.

• Accurate air measurement helps optimize fuel-air mixture control.
• May reduce engine hesitation and unstable idling from a degraded sensor.
• Can lead to more consistent throttle response and drivability.
• Works with your vehicle’s existing ECU—no reprogramming typically needed.

What should I do before and after installing the sensor?

Preparation and basic diagnostics help ensure a successful replacement and avoid repeat errors. Clean the airbox and replace the air filter before installing the new sensor to prevent contaminants from affecting the new unit.

• Clear any stored engine codes and recheck after installation.
• Inspect and clean the air intake and air filter before fitting the sensor.
• If the check engine light persists, verify wiring, connectors, and related vacuum lines.
• Follow manufacturer torque specs and avoid touching sensing elements during installation.

What warranty and support does AdvanEX provide for this MAF?

AdvanEX supplies this MAF sensor as a new replacement part and backs it with a customer support promise. If you encounter problems or fitment questions, contact AdvanEX for guidance and warranty service within the stated coverage period.

• Product is 100% new—no rebuilt or remanufactured units.
• One-year after-sale support with customer response typically within 24 hours.
• Support includes troubleshooting fitment, installation tips, and warranty claims.

Who is this for: This AdvanEX MAF sensor suits DIY mechanics and professional technicians working on mid-2000s to newer Toyota, Lexus, and Scion vehicles that use the listed OE part numbers. It’s aimed at drivers experiencing airflow-related drivability or engine codes who want an OEM-compatible, new replacement sensor backed by a one-year support period. Always verify the part number and connector on your original sensor to ensure direct compatibility before purchase.