C-Tzu Mass Air Flow (MAF) Sensor 22204-31020 for Toyota & Lexus — Direct-Fit, OE-Equivalent

The C-Tzu MAF Sensor 22204-31020 is a direct-fit mass air flow meter engineered to restore accurate airflow readings for compatible Toyota, Lexus, Scion and select Pontiac models.

If your engine is running rough, the check engine light indicates an airflow fault, or fuel economy has dropped, a faulty mass air flow (MAF) sensor is a common cause. This C-Tzu unit is manufactured as an OE-equivalent replacement compatible with several 2005–2015 Toyota, Lexus and Scion applications, and it’s designed to drop in without modifications. Each sensor is computer-tested and built from oxidation- and heat-resistant materials to offer consistent signal output and reliable everyday performance.

How will this MAF sensor affect my vehicle’s drivability?

Replacing a malfunctioning MAF sensor can stabilize engine idle, smooth acceleration and reduce hesitation caused by incorrect air intake readings. The sensor sends accurate airflow data to the engine control unit, allowing fuel trims and ignition timing to adjust appropriately.

• Corrects erratic idle and stalling caused by faulty airflow readings
• Helps reduce hesitation during acceleration
• Improves fuel trim accuracy to support consistent performance

Will this part fit my Toyota Camry or Lexus model?

This C-Tzu sensor replaces OE numbers including 22204-31020 and equivalents, covering many model years of Toyota Camry, Avalon, Highlander, Venza and RAV4 as well as Lexus IS250, IS350 and ES350. Fitment varies by engine and year, so verify exact vehicle compatibility before ordering.

• Direct replacements for OE part numbers such as 22204-31020
• Compatible with select 2005–2015 Toyota and 2006–2014 Lexus models
• Use the vehicle compatibility filter or confirm OEM number prior to purchase

How difficult is installation and what should I expect?

Installation is straightforward for basic DIY repairs and typically takes about 10 minutes for a technician or experienced DIYer. The sensor is a drop-in unit that connects to the factory air intake housing and the vehicle’s wiring harness; resetting the ECU by disconnecting the battery ground can clear associated codes.

• Drop-in design requires no cutting, wiring, or modifications
• Disconnect battery ground briefly to reset engine control lights if needed
• Saves on mechanic labor compared with dealer replacement

What quality assurances and post-purchase support are provided?

Each sensor undergoes electronic testing to ensure stable signal output and is manufactured from materials chosen for oxidation and heat resistance. The product ships with a 12-month warranty and a 30-day return or replacement policy to address early issues.

• 100% computer-tested for reliable signal performance
• Built from durable materials for long-term stability
• 12-month warranty plus 30-day money-back or replacement policy

Who is this unit for? If you own a compatible Toyota, Lexus, Scion or select Pontiac Vibe and you’re experiencing check-engine codes related to airflow (P0100/P0101), reduced fuel economy, or unstable idle, this C-Tzu MAF sensor is intended as a cost-effective OE-style replacement. It’s aimed at DIY mechanics, independent repair shops and vehicle owners who want a factory-style part without dealer pricing. Always confirm fitment with your vehicle’s OEM part number or the online compatibility tool before ordering to ensure correct application.