Hella 358166331 Mass Air Flow Sensor (MAF) 7-Pin Bolt-On

The Hella 358166331 is a direct-replacement Mass Air Flow (MAF) Sensor engineered to restore proper engine management function. Positioned between the air filter housing and the intake manifold, the MAF sensor continuously measures the volume and density of intake air, delivering real-time data to the engine control unit (ECU) for precise fuel injection and ignition timing calibration.

Key Features:

• 7-Pin Blade Connector — direct plug-in replacement with no wiring modifications required
• Bolt-On Mounting — secure, vibration-resistant installation with OE-style hardware attachment
• OE-Level Quality — manufactured to original equipment specifications for accurate air mass measurement and long service life
• High Measurement Precision — consistent output signal supports stable idle, smooth acceleration, and proper fuel trim
• Supports EGR Function — also serves as an input for exhaust gas recirculation system monitoring
• 1-Year Limited Warranty — backed by Hella's quality assurance

A failed or contaminated MAF sensor commonly triggers diagnostic trouble codes P0100, P0101, P0102, or P0103 and may cause symptoms such as rough idle, poor acceleration, increased fuel consumption, or an illuminated Check Engine light. Replacing the sensor with a quality unit like the Hella 358166331 restores accurate airflow readings and returns the engine management system to proper operation.

Hella is a globally recognized OE supplier with decades of experience in automotive electronics. Their aftermarket MAF sensors leverage the same engineering expertise found in original equipment applications, ensuring a precise fit and reliable long-term performance.