Oxygen Air Fuel Ratio Sensor

The air fuel ratio sensor receives voltage from the vehicle s ecu and.

Oxygen air fuel ratio sensor.

The oxygen sensor or air fuel ratio sensor before the catalytic converter is used by the ecm to adjust the air fuel ratio. 2016 denso air fuel sensor and oxygen sensor catalog. An air fuel ratio meter monitors the air fuel ratio of an internal combustion engine also called air fuel ratio gauge air fuel meter or air fuel gauge it reads the voltage output of an oxygen sensor sometimes also called afr sensor or lambda sensor. On v type engines one sensor will be referred to as bank i sensor 1 and the other as bank 2 sensor 1.

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A using a light bulb analogy the oxygen sensor sends voltage to the vehicle s ecu and acts like an on off switch turning the bulb on and off. If there is any problem with the sensor it can send a bad or false signal to the computer which can throw off its calculations and cause it to waste fuel excessively. Narrow range oxygen sensor typically called an oxygen o2 sensor wide range oxygen sensor typically called an air fuel ratio a f sensor. The exterior appearance of the air fuel ratio sensor and oxygen sensor may be very similar but that s where the similarity stops.

This sensor in obd ii terms is referred to as sensor 1. Live customer service technical support. 888 800 9629 0 0 00 us my account login. Oxygen sensor construction and operation the oxygen sensor sometimes referred to as heated oxygen sensor ho2s or o2s has been in service the longest.

A contaminated sensor will not produce an accurate signal or generate an accurate air fuel mixture reading. The air fuel ratio sensor monitors the oxygen content in the exhaust stream and sends data to the computer so that it can add or subtract fuel. The original narrow band oxygen sensors became factory installed standard in the late 1970s and early 1980s. This sensor features zirconia solid electrolyte integrated with alumina heater substrate which precicely controls the amount of oxygen concentration that flows.

It is constructed from durable material that is corrosion and abrasion resistant. To contact them click here. A f sensors fall prey to the same ailments as ordinary o2 sensors.