Where should O2 sensors be located?

Where should O2 sensors be located?

The oxygen sensor helps keep that balance in check. The sensor is typically located on the passenger side of the car, mounted directly onto the exhaust pipe near the catalytic converter. When the sensor goes bad, your car may lose up to 40 percent of its fuel efficiency, because your car will use too much gas.

Where is the upstream sensor located?

The upstream oxygen sensor is located before the catalytic converter. This measures the level of pollutants coming directly from the engine. It also senses any raw, unburned fuel coming from the combustion chambers.

Can I just replace one O2 sensor?

It is best to replace your sensors in pairs. For example, if you replace the downstream left sensor, you should also replace the downstream right. However, on most vehicles produced since 1996, replacing one sensor (especially the front engine monitoring sensor) will cause the ECU to set a code for the other sensors.

Where is the front sensor on a Chevy Cavalier?

If you are replacing the rear sensor (downstream), you’ll need to lift the Cavalier’s front end with the floor jack and support it safely and securely onto the jack stands. The front sensor is located in the front lower center of the engine and screwed into the header pipe.

Where are the sensors on a GM 2.2 liter engine?

Typical engine data sensor and control component locations on the GM 2.2L and 2.4L Ecotec engine. Click on numbers below image for more information. 1. Ignition coil over plug 2.

What happens when the oxygen sensor fails on a Chevy Cavalier?

The computer then adjusts the ratio of air and fuel to lower the pollution in exhaust. When the sensor fails in the Cavalier, the computer ignores it and makes its own adjustments, which can cause more pollution, less gas mileage or both.

What kind of engine does a Chevy Cavalier have?

The common engine in the Chevy Cavalier is the 2.2 liter four cylinder. A few models have a 2.4 liter engine. Both engines use two oxygen sensors.

If you are replacing the rear sensor (downstream), you’ll need to lift the Cavalier’s front end with the floor jack and support it safely and securely onto the jack stands. The front sensor is located in the front lower center of the engine and screwed into the header pipe.

The common engine in the Chevy Cavalier is the 2.2 liter four cylinder. A few models have a 2.4 liter engine. Both engines use two oxygen sensors.

The computer then adjusts the ratio of air and fuel to lower the pollution in exhaust. When the sensor fails in the Cavalier, the computer ignores it and makes its own adjustments, which can cause more pollution, less gas mileage or both.

Where is the cooling fan sensor on a GM 2.2 liter engine?

Answer: The Intake Air Temperature Sensor ( IAT) is located in the intake air runner between the air filter and the throttle. It is not viewable in the picture above though. Where is the cooling fan sensor?