Japanese Toyota Upstream Oxygen Sensor

Description

Typically, the market’s oxygen sensors can be grouped into three categories: zirconia, titania, and wideband oxygen sensors.
– Zirconia: Zirconia oxygen sensors are quite popular. They can further be split into two categories: unheated and heated. Unheated oxygen sensors rely on heat from exhaust gases to send signals to the Engine Computer Unit. The disadvantage of these sensors is that it could take more than a minute to reach the optimum temperature for operation. The heating delay consequently leads to a delay in the signal. The ECU might get confused and release the wrong amount of fuel. On the other hand, heated oxygen sensors have a heater circuit. When starting the car, the circuit automatically heats the sensor. The probability of erroneous signals is low, making it a more efficient option.
– Titania: Unlike zirconia sensors, titania oxygen sensors are made of ceramic material. The sensors also send signals to the ECU differently.
– Wideband: Wideband oxygen sensors are also commonly known as air-fuel ratio sensors. They are more common in newer cars. These sensors are incredibly efficient since they create a higher level of voltage than their zirconia counterparts.