Essential Emission Control: Oxygen Sensor

The efficient functioning of your vehicle heavily relies on the small yet significant component known as the oxygen sensor. This sensor plays a pivotal role in maintaining optimal fuel efficiency and minimizing harmful emissions ?. It measures the amount of oxygen in the exhaust gases, providing crucial data to the engine control unit (ECU) for adjusting the fuel-to-air ratio.

How It Works

Positioned strategically in the exhaust manifold, the oxygen sensor continuously monitors the oxygen levels in the exhaust flow. It generates a voltage signal relative to the oxygen concentration, which is analyzed by your vehicle's ECU. This feedback enables the ECU to fine-tune the fuel mixture, ensuring the engine runs efficiently with reduced emissions.

Consequences of a Faulty Sensor

When this sensor malfunctions, it can lead to a cascade of issues. A defective oxygen sensor can cause poor fuel economy, increased emissions, rough idling, and even potential engine damage if left unchecked. Furthermore, it often triggers the check engine light, signaling that immediate attention is required ⚠️.

Compatibility

• Hilux Surf
• Land Cruiser Prado