An air/fuel ratio sensor is used instead of a conventional oxygen sensor because:
A) the air/fuel ratio sensor does not require a heater element
B) an air/fuel ratio sensor allows for more accurate fuel control
C) an air/fuel ratio sensor is less expensive than a conventional oxygen sensor
D) none of the above

Question

Quizplus · Accepted Answer

An air/fuel ratio sensor provides more precise data on the oxygen content in the exhaust, allowing the engine control unit (ECU) to adjust the fuel mixture more accurately for optimal combustion, emissions, and fuel economy. Unlike conventional oxygen sensors, which only indicate if the mixture is rich or lean, air/fuel ratio sensors can measure the exact ratio, enabling finer control.

An Air/fuel Ratio Sensor Is Used Instead of a Conventional