How do you fix an oxygen sensor?

You need to get a die that fits. Probably cheaper to buy the sensor

Check the O2 sensor(oxygen sensor) AFTER the catalytic converter

Replace it. Sensor 2 is the one AFTER the catalytic converter.

you take it to the people to fix it.

The only thing you can do to them is change them.

The oxygen sensor on a Saturn can be found in the exhaust manifold at the front of the engine. It simply unscrews and unplugs. 5 minute fix!

The outward appearance of a defective oxygen sensor is no different than the appearance of a brand new one. The components that fail are internal and cannot be repaired ... direct replacement is the only fix.

The only fix is to replace it. If you are mechanicly inclined, this is a doable deal. Before you replace the sensor you should check the wiring for resistance you can use a volt/ohms meter (vom) and test the continuity of the wiring to the sensor.

Code P0135 means upstream oxygen sensor heater circuit problem right cylinder bank. Did you clear code after replacing the oxygen sensor?

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

P0125 is about coolent temp. sensor the problem is not the coolent sensor. When you have lazy Oxygen sensor you get this code. It is sensor 1 but you need to find out which bank, the only way you can find this out by snapon scanner.

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

P0135 on Mitsubishi galant 2003 Definition: HO2S 11 Heater condition (Heated Oxygen Sensor Bank 1 Sensor 1) Explanation: The powertrain control module monitors the oxygen sensor heater. The computer has recognized a failure in this ciricuit. Probable Causes 1. -Oxygen sensor defective 2. -Poor connection at oxygen sensor 3. -Check circuit-fuse

Check for exhaust leaks, test oxygen sensor operation, replace the catalytic converter. Check for exhaust leaks, test oxygen sensor operation, replace the catalytic converter.

If you have an oxygen sensor problem then there should be a check engine light "on." Have a repair shop scan and diagnosis the problem. You may not truly have a problem with the oxygen sensor as it could be a vacuum leak that makes the o2 sensor set a code.