answersLogoWhite

0

What is an oxygen sensor used for?

Updated: 10/20/2022
User Avatar

Wiki User

18y ago

Best Answer

The oxygen sensor reports live information about the engine's air/fuel mixture to the powertrain control module, (Computer). This information is used primarily to help calculate fuel delivery to the engine, which changes continuously while it is running. If the engine is running lean, the powertrain control module will sense this from the oxygen sensor's signal and increase the air/fuel mixture to the engine. Conversely, just the opposite occurs when the engine begins to run rich. On OBDII-equipped vehicles, the sensors are also used to help determine the efficiency of the catalytic converter. The powertrain control module does this by comparing the signal of the sensor located at the inlet of the catalytic converter with the signal of the sensor located at the outlet of the converter.

User Avatar

Wiki User

18y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is an oxygen sensor used for?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What type of sensor is used to determine the oxygen pressure in the exhaust manifold of automotive fuel injection system engines?

Oxygen sensor


What oxygen sensor is used on the Ohmeda 5100 Oxygen monitor?

Psr-11-915


Where is the locations of oxygen sensor for Mitsubishi Outlander?

There are two oxygen sensor for Mitsubishi Outlander. Front Oxygen Sensor and Rear Oxygen Sensor


Do you need a oxygen sensor for headers?

If the vehicle was built with an oxygen sensor, you will need an oxygen sensor.


What is the purpose of the oxygen sensor after the catalytic converter?

The second oxygen sensor is now used downstream of the catalytic converter to monitor converter operating efficiency.


What does an oxygen sensor do on a Ford Explorer?

The oxygen sensor(s) before the catalytic converter(s) is used to determine the air / fuel ratio of the engine


Where exactly is the location of your oxygen sensor heater in a 2002 rodeo?

It's integrated into the oxygen sensor. Buy a new oxygen sensor and you get a free oxygen sensor heater.


Change oxygen sensor on 95 Oldsmobile cutlass ciera?

Remove the oxygen sensor vacuum to. Remove the oxygen sensor screws. Reverse the process to install the new oxygen sensor.


Ford Fiesta oxygen sensor replacement?

Remove the vacuum hose from the oxygen sensor. Remove the oxygen sensor retaining screws. Reverse the process to install the new oxygen sensor.


What is the work of the O2 sensor?

An O2 sensor is used to check the level oxygen in your blood. On a car it measures the oxygen content of the exhaust to the adjust air/fuel ratio


How to replace oxygen sensor on a 2002 ford explorer xlt?

To replace the oxygen sensor disconnect the oxygen sensor electrical connector. Use an oxygen sensor socket to remove the sensor. spray the sensor with penetration oil if it is difficult to loosen. install in reverse.


What is a downstream oxygen sensor?

it is the oxygen sensor afterthe cat conv