Subaru Air Flow Meter

An essential component for maintaining the engine's precision, the air flow meter is crucial for those who desire peak performance and fuel efficiency. This part measures the quantity of air entering the engine, ensuring that the engine control unit receives accurate data for optimal fuel-air mixture regulation.

Why You Need This Part

Without an accurate measurement of air intake, an engine can experience poor fuel economy, reduced power, and increased emissions. Ensuring your vehicle has a functioning air flow meter is necessary for maintaining the performance and longevity of your engine.

How It Works

The meter operates using a small film or wire that heats up as air passes over it. As the temperature changes, the resistance changes, sending this information to the engine computer. This data informs the amount of fuel that needs to be injected, maintaining the ideal air-fuel ratio.

What Happens If It Breaks?

If the air flow meter fails, it can lead to a series of engine issues such as stalling, rough idling, and hesitation upon acceleration. You might also experience a noticeable drop in fuel efficiency. This could escalate to costly repairs if left unaddressed.

Compatibility

• Legacy
• Impreza
• Xv
• Forester
• Wrx/Levorg
• Exiga
• Wrx