Japanese Subaru- Air/Fuel Ratio Sensor

Description

Air-fuel ratio is a critical parameter in combustion engines as it determines the efficiency and performance of the engine. The proper balance between air and fuel ensures optimal combustion, leading to maximum power output and minimal emissions.

The Air-Fuel Ratio (AFR) sensor, also known as an Oxygen Sensor (O2S), is a key component in modern combustion engines. It measures the oxygen content in the exhaust gases and provides feedback to the Engine Control Module (ECM) to adjust the fuel injection for optimal combustion.

The primary purpose of the AFR sensor is to monitor oxygen density in the exhaust gas and provide the information to the ECM. The ECM uses this information to adjust the amount of fuel in the air-fuel mixture. By constantly analyzing the oxygen level in the exhaust gases, the sensor enables the ECM to adjust the fuel delivery, ensuring the engine operates at the ideal air-fuel ratio for optimal performance and emission control.