Hella 358166391 Mass Air Flow Sensor MAF

The Hella 358166391 is a direct-fit mass air flow (MAF) sensor engineered to OE-equivalent quality standards. Located between the air filter housing and the intake manifold, this sensor continuously measures the volume and density of intake air, delivering precise real-time data to the engine control unit (ECU) for accurate air-fuel mixture calibration.

Key Features:

• OE-Level Accuracy: Built to original equipment specifications using hot-film sensor technology for high measuring precision across a broad dynamic range
• Robust Construction: Engineered for consistent performance and a long service life across varying environmental and temperature conditions
• Direct-Fit Replacement: Designed as a plug-and-play replacement, matching OEM connector configuration and mounting geometry
• Supports EGR Function: Provides airflow data that also serves as a control input for the exhaust gas recirculation (EGR) system
• Emissions Compliance: Helps maintain proper combustion efficiency, supporting reduced exhaust emissions

A faulty mass air flow sensor can result in poor acceleration, rough idle, decreased fuel economy, increased emissions, and diagnostic trouble codes such as P0101, P0102, or P0103. Replacing a worn or contaminated MAF sensor with a quality Hella unit restores accurate airflow measurement and protects downstream engine management components.

Hella is a globally recognized OE supplier with decades of expertise in automotive electronics, making the 358166391 a trusted choice for professional technicians and DIY enthusiasts alike.