Where is Honda Civic oxygen sensor, Civic oxygen sensor location and replacement tutorial.

Honda Civic usually has two oxygen sensors, namely front oxygen and rear oxygen. The front oxygen is generally in front of the three-way catalyst, and the rear oxygen is behind it. See the figure below for the specific location.

1 wiper water

2 storage battery

3 Throttle

4 oxygen sensor

5 Brake tank

6 fuse box

7 Air cleaner element

8 Coolant tank

The working environment of oxygen sensor is very bad, and it needs to be replaced after driving 654.38+ 10,000 kilometers. You can know whether the oxygen sensor needs to be replaced by observing the tip of the oxygen sensor. If the tip is black (mainly carbon deposit), it is necessary to quickly clean up the carbon deposit inside the sensor, and use excessive ferric chloride solution of hydrochloric acid, 5- 10%. If the top is white or brown, the oxygen sensor is poisoned. At this time, cleaning will not have any impact, but the oxygen sensor should be replaced in time.

The following is the replacement tutorial of Civic oxygen sensor.

1, first find the specific location of the oxygen sensor;

2. Remove the protective cover of the oxygen sensor plug and unplug the oxygen sensor plug;

3. Unscrew the oxygen sensor to be replaced directly with a wrench;

4. Install a new oxygen sensor according to the original position;

5. Connect the trip computer, clear the fault code, choose to read the engine data stream, and check whether the values of each component are normal.