Bosch Heated Oxygen Sensor

The Bosch Heated Oxygen Sensor (also called an O2 sensor or lambda sensor) measures the oxygen content in the exhaust stream. It sends that data to the engine control unit. The ECU uses it to fine-tune the air-fuel mixture for efficient combustion, lower emissions, and good fuel economy.

Key Features:

• Built-in heating element brings the sensor to operating temperature quickly, so closed-loop fuel control starts sooner after a cold start
• Accurate, stable signal output supports precise air-fuel ratio control
• Designed to meet original equipment specifications for fit, function, and performance
• Durable construction resists exhaust heat, vibration, and contamination
• Helps maintain emissions system performance and protects the catalytic converter

Bosch is a leading original equipment supplier and pioneered the automotive oxygen sensor. A worn or failing sensor can cause poor fuel economy, rough idle, a check engine light, and higher emissions. Replacing it restores efficient engine management. Select the child item that matches your application to get the correct connector and sensor configuration.