Understanding the Importance of the Air Flow Meter

The air flow meter, often overlooked, is a vital component in maintaining a vehicle's optimal performance. This part measures the amount of air entering the engine, providing essential data to the engine control unit (ECU) to ensure the right air-fuel mixture for combustion. It directly influences engine efficiency and emissions levels.

How It Works

The air flow meter operates by gauging the volume of air entering the intake system through a heated sensing element. As air passes over the element, it cools it down. The ECU monitors this temperature change to determine the air mass flow rate. This data allows the ECU to adjust the fuel injection rate, ensuring the optimal mixture for efficient combustion.

Consequences of a Malfunction

If the air flow meter fails or malfunctions, several issues may arise. Most notably, you may experience reduced fuel efficiency, rough idling, or even stalling. A broken meter can lead to incorrect air-fuel mixtures, causing the engine to run rich or lean, which can damage the catalytic converter and increase harmful emissions.

Compatible Models

• Crown/Crown Majesta
• Mark 2/Mark 2 Blit
• Verossa