Hi! good afternoon, today we will made an article about How to Remove the Rear Oxygen Sensor: Steps and Warnings
Oxygen sensors or lambda probes measure the mixture of oxygen and gas expelled from your vehicle. This helps the on-board computer diagnose the weather your car is running properly in and is also within federal pollution regulations. However, here we will tell you how to remove rear oxygen sensor.
When people modify their cars to gain power, the oxygen sensor usually tells the computer that the vehicle is out of regulation and the check engine light comes on. Some people remove the rear oxygen sensor located directly in front of the catalytic converter to achieve remove check engine light.
How to remove the rear oxygen sensor

The steps you must follow to remove a rear oxygen sensor or lambda probe are as follows:
- Locate the exhaust manifold bolted to the side of the engine head on the duct side of the engine. It follows the exhaust pipe (called the downpipe) from the manifold to the large oval catalytic converter that bolts to the pipe. The oxygen sensor has a green wire extending from it; the sensor is white and looks almost like a spark plug.
- Trace the green wire back to the wiring harness it connects to. You should be 4 to 6 inches away from the oxygen sensor.
- Disconnect the green wire from the wiring harness by pulling the green wire’s plastic connector out of the wiring harness.
- Tie the green wire around another wire in the harness to prevent the wire from dangling and possibly falling into the exhaust pipe.
Well, these were the tips to remove the rear oxygen sensor from a vehicle, remember to follow these steps correctly to avoid inconvenience.

Caveat
You can remove the oxygen sensor or lambda sensor completely and replace it with a threaded plug (metal threaded cap) by twisting the sensor out of the pipe with a wrench and then screwing the plug into the hole. However, this will automatically cause it to fail an inspection before the technicians do their emissions tests because they will see that the O2 sensor is missing.
If the light of “check engine” illuminates after disconnecting the oxygen sensor, it will also fail the emissions test. You should only disconnect the oxygen sensor in a vehicle that will be used for racing or off-roading.
Oxygen sensors or lambda probes measure the mixture of oxygen and gas expelled from your vehicle. This helps the on-board computer diagnose the weather your car is running properly in and is also within federal pollution regulations. However, here we will tell you how to remove rear oxygen sensor.
When people modify their cars to gain power, the oxygen sensor usually tells the computer that the vehicle is out of regulation and the check engine light comes on. Some people remove the rear oxygen sensor located directly in front of the catalytic converter to achieve remove check engine light.
How to remove the rear oxygen sensor

The steps you must follow to remove a rear oxygen sensor or lambda probe are as follows:
- Locate the exhaust manifold bolted to the side of the engine head on the duct side of the engine. It follows the exhaust pipe (called the downpipe) from the manifold to the large oval catalytic converter that bolts to the pipe. The oxygen sensor has a green wire extending from it; the sensor is white and looks almost like a spark plug.
- Trace the green wire back to the wiring harness it connects to. You should be 4 to 6 inches away from the oxygen sensor.
- Disconnect the green wire from the wiring harness by pulling the green wire’s plastic connector out of the wiring harness.
- Tie the green wire around another wire in the harness to prevent the wire from dangling and possibly falling into the exhaust pipe.
Well, these were the tips to remove the rear oxygen sensor from a vehicle, remember to follow these steps correctly to avoid inconvenience.

Caveat
You can remove the oxygen sensor or lambda sensor completely and replace it with a threaded plug (metal threaded cap) by twisting the sensor out of the pipe with a wrench and then screwing the plug into the hole. However, this will automatically cause it to fail an inspection before the technicians do their emissions tests because they will see that the O2 sensor is missing.
If the light of “check engine” illuminates after disconnecting the oxygen sensor, it will also fail the emissions test. You should only disconnect the oxygen sensor in a vehicle that will be used for racing or off-roading.