you replace them
Option 2: Replace the oxygen sensor only if it's bad. They do wear out and the Chilton's or Hayne's manual for your car should have directions on how to test it. An OEM replacement sensor for some popular cars is about $240, and your car probably has two of them. If you replace it with a cheap sensor from a discount parts store, you may be throwing away a perfectly good high quality sensor which just needs to be cleaned.
Here's a quote from a Toyota mechanic with 32 years of experience, on another web site:
"You don't need to replace them, remove them and clean them. [If you read an O2 sensor malfunction code] The computer is saying the vehicle is running a little rich or lean. IT DOES NOT mean the sensor(s) are bad. Auto parts stores just want to sell you products. If I received a dollar every time a 02 sensor was replaced on a vehicle I'd have millions."
That said, there doesn't seem to be an "official" way to do it, or an entirely safe way. But since you ask, here are some ways people have done it:
1. Clean it with a throttle body aerosol cleaner which states that it's safe for oxygen sensors.
2. Heat it up with a torch and dip it in water. Use an air hose to clean the gunk out. Repeat.
3. Soak it in gasoline overnight. Shake the dissolved gunk out.
It's up to you to stay safe, so if in doubt, drive over to a shop and pull out the credit card. It's one of those things, like nobody's going to tell you how to clean your bathroom mirror with ammonia at $0.99 a gallon, but lots of people are happy to sell you ammonia with blue die in it at $4.50 a pint.
You can not successfully clean an oxygen sensor. You need to replace it.
There are two oxygen sensor for Mitsubishi Outlander. Front Oxygen Sensor and Rear Oxygen Sensor
If the vehicle was built with an oxygen sensor, you will need an oxygen sensor.
It's integrated into the oxygen sensor. Buy a new oxygen sensor and you get a free oxygen sensor heater.
Remove the vacuum hose from the oxygen sensor. Remove the oxygen sensor retaining screws. Reverse the process to install the new oxygen sensor.
Remove the oxygen sensor vacuum to. Remove the oxygen sensor screws. Reverse the process to install the new oxygen sensor.
It has two. They must be replaced, not cleaned.
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.
it is the oxygen sensor afterthe cat conv
maf sensor or idle air control/ecm. force-clean fuel injectors and reset engine timing and base idle
An Oxygen sensor does not reset. You have to replace them and yes they are expensive.
It doesn't have an oxygen sensor.
The upstream oxygen sensor is mounted in the exhaust manifold The downstream oxygen sensor is mountedin the exhaust pipe after catalytic converter
Oxygen sensor is located at the exhuast Manifold.
A 1969 car would not have an oxygen sensor.
You can not. Replacement of the oxygen sensor is the only way.
Oxygen SensorOxygen Sensor Location
Most oxygen sensors are heated oxygen sensors.
A 1997 Dodge with a Cummins diesel does not have an oxygen sensor.A 1997 Dodge with a Cummins diesel does not have an oxygen sensor.
The upstream oxygen sensor is mounted in the exhaust manifold The downstream oxygen sensor is mounted in the exhaust pipe after the catalytic converter
How do you change oxygen sensor in 1992 Toyota corolla? Is there a model engine 4A-FE without a oxygen sensor?
The upstream heated oxygen sensor is located ahead of the catalytic converter The downstream heated oxygen sensor is located behind the converter
The 2002 VW oxygen sensor is quite simple to replace. Remove the wiring harness. The oxygen sensor will simply pull out.
The front oxygen sensor is located on the exhaust manifold of the BMW 318ti. The rear oxygen sensor is located in the head pipe.