Frequently Asked Questions - NTK Oxygen Sensors

Q: What does an Oxygen Sensor do?

A: Oxygen Sensors measure the oxygen content in exhaust gas. Oxygen in exhaust gas accurately indicates how complete the combustion process is. This data is transmitted to the car's ECU in real-time. The ECU then adjusts the air/fuel ratio to keep the exhaust gas in a composition that permits effective treatment by the catalytic converter.

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