YUANCHINB Mass Air Flow Sensor 23256991 - Direct-Fit for 2009-2015 Chevy/GMC, Restores Idle & Fuel Economy

YUANCHINB Mass Air Flow Sensor 23256991 is a direct-fit replacement MAF sensor engineered to restore accurate air-flow readings and resolve P0100–P0104 diagnostic codes on compatible 2009–2015 GM trucks and SUVs.

When a failing mass air flow sensor triggers a check engine light, misfires, poor fuel economy, or rough idle, replacing it with a correctly sized, fully tested unit is the fastest way to return your truck to predictable performance. This aftermarket YUANCHINB sensor is built to match the original fit and function for many Chevy, GMC, and Cadillac V8 applications and carries cross-reference numbers like 10393948, AF10060, and MAF300 to simplify parts matching.

Which vehicles does this mass air flow sensor fit?

This sensor covers a wide range of full-size GM trucks and SUVs fitted with 4.3L, 5.3L, 6.0L, and 6.2L engines from the 2009–2015 model years. Fitment lists include Chevy Silverado and Avalanche models, GMC Sierra and Yukon variants, plus select Cadillac CTS and Escalade years. Always verify the part number and engine size against your vehicle before ordering.

• Chevy: Avalanche (2009–2013), Silverado 1500 (2009–2013), Silverado 2500/3500 HD (2009–2015), Tahoe/Suburban models (2009–2014)
• GMC: Sierra 1500/2500/3500 (2009–2015), Yukon/Yukon XL (2009–2014)
• Cadillac: CTS (2009–2015), Escalade (2009–2014)
• OEM cross-reference: 23256991, 10393948, AF10060, MAF300, 917-1067, 5S13836

How will replacing this MAF sensor affect drivability?

Swapping a worn sensor for this YUANCHINB unit restores precise airflow information to the engine control unit, which improves fuel injector timing and combustion consistency. Expect smoother idle, reduced stalling, and improved throttle response if the original sensor was failing. It also helps correct fuel trim errors that can lead to higher fuel consumption.

• Corrects inaccurate air-flow readings that cause rough idle and hesitation
• Helps stabilize fuel trims and reduce poor fuel economy
• Improves throttle response and overall drivability
• Designed to mimic OEM electrical and mechanical fit for straightforward replacement

Can this part clear check engine lights and specific error codes?

The YUANCHINB sensor is manufactured to provide the accurate voltage and frequency signals the ECU expects, so it can eliminate MAF-related diagnostic trouble codes when the underlying fault is the sensor itself. It is intended to address codes P0100, P0101, P0102, P0103, and P0104 commonly associated with mass air flow issues. If other systems are damaged or the code persists, further diagnosis may be required.

• Targets common MAF error codes: P0100–P0104
• Restores correct sensor outputs for ECU recalibration
• Not a substitute for diagnosis if wiring or intake leaks are present
• Each unit is bench-tested prior to shipping for reliable performance

What should I know about installation, quality, and warranty?

Installation is typically straightforward and follows stock sensor removal procedures—unplug the connector, unfasten the sensor, and refit the replacement. YUANCHINB tests every sensor before shipment and supports the part with a 12-month warranty. Keep original connectors and intake hardware in good condition and consult a technician if you encounter fuel or air leaks after installation.

• Direct-fit design for factory mounting locations and connectors
• 100% tested units and 12-month limited warranty from YUANCHINB
• Contact support for fitment or installation help
• Replace only with correct part numbers to avoid compatibility issues

Who is this for? The YUANCHINB Mass Air Flow Sensor 23256991 is intended for owners and mechanics who need a reliable, OEM-compatible replacement for MAF-related drivability problems on 2009–2015 Chevy, GMC, and Cadillac trucks and SUVs. It is a practical option for DIY repairs or professional shops seeking an affordable tested replacement that matches common original equipment part numbers and helps resolve MAF diagnostic codes quickly.