C-Tzu Mass Air Flow Meter MAF Sensor 2133458 — Direct OE Replacement for Chevy/GMC/Buick, Accurate Airflow Calibration

The C-Tzu 2133458 Mass Air Flow (MAF) Meter is a direct-replacement sensor that measures incoming air to restore accurate fuel-air balance and reliable engine performance for compatible Chevy, GMC, and Buick models.

If your vehicle is running roughly, showing a check engine light, or experiencing reduced fuel economy, the MAF sensor often plays a central role. The C-Tzu 2133458 is designed as a one-to-one replacement for OE-style sensors used across a range of Chevy, GMC, and Buick vehicles from the late 1990s through the mid-2000s. Built to OEM standards, it provides the same mounting points, electrical connector, and calibrated airflow response so you can replace a failing unit without modifying wiring or intake plumbing.

Which vehicles will this C-Tzu MAF sensor fit?

This MAF sensor fits multiple GM applications where the original part number 25008302 (or equivalent) was specified. It covers several Chevy vans, S10/Blazer variants, and Buick sedans from the indicated model years. Always cross-check your VIN or the original sensor part number against the listing before purchase.

• Compatible with 2002–2005 Chevy Astro Van models.
• Fits 1996–2001 Chevy Blazer and S10 platforms where the OEM MAF matches 25008302.
• Works for 2000–2005 Buick Century models requiring the same MAF specification.
• Direct-match connector and mounting for straightforward replacement.

How does replacing the MAF sensor help engine performance?

A correct MAF reading helps the engine control unit (ECU set) calculate the right fuel delivery for combustion. Replacing a worn or contaminated MAF can reduce rough idle, improve throttle response, and help restore fuel efficiency by returning measurements to factory-like accuracy.

• Improves fuel-air ratio accuracy for smoother running.
• Can lower emissions by aiding proper catalytic converter function.
• Reduces chances of misfires or stumbling on acceleration.
• May clear MAF-related check engine codes once installed and learned by the ECU.

Is installation difficult, and what should I prepare?

Installation is generally straightforward since the C-Tzu 2133458 is an OEM-style, direct-replacement unit. Minimal tools are needed: typically a screwdriver or small socket set to remove the intake tube and the MAF retaining screws. Cleaning the airbox and fitting a fresh air filter before installation helps prevent contaminants from immediately fouling the new sensor.

• Basic hand tools required; no wiring or cutting necessary.
• Recommended to replace or clean the air filter and airbox first.
• Allow the ECU to relearn idle and airflow after installation; short drive cycles help calibration.
• If a check engine light remains, scan codes to confirm if additional repairs are needed.

Built from durable materials and tested to meet or exceed OEM expectations, the C-Tzu 2133458 includes a one-year warranty that covers manufacturing defects. This product aims to be a cost-effective, reliable option when the original MAF has failed or is causing drivability issues.

Who is this for: Owners and mechanics who need a reliable, direct-fit replacement MAF sensor for compatible late-1990s to mid-2000s Chevy, GMC, and Buick vehicles. It’s suitable for DIY installers seeking an OE-style swap, fleet technicians servicing multiple GM models, and anyone looking to restore proper air measurement without custom modifications.