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how to clean O2 sensor

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Old 10-27-11, 05:17 PM
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how to clean O2 sensor

how do i clean O2 sensor , i use premix fuel, 1oz. to 1 gallon gasoline.

AEM only lasts about 1000miles and goes 13.8 staedy, replace sensor and around a 1K fouls up again.

can the sensor be cleaned?? its gettin old replacing just the O2 sensor.
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Old 03-14-12, 01:20 AM
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I've read about 2 methods people use to clean their o2 sensors. I have no Idea if this would work for a wideband sensor or not, I've only tried it on a narrowband sensor.

One says to leave the end soaking in gasoline or seafoam overnight, and clean it out with a brush.

The other method is to heat the end with a propane torch til it's glowing, then dunk it in water.

I actually tried the heating/water one today (narrowband), and black gunk seemed to jump out of the sensor, it was kind of cool. I've yet to run the car with it though, (my wife's 240sx)

I'll let you know how it turns out.
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Old 03-14-12, 04:11 PM
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How about heating the tip red hot and diping it into liquid oxygen?
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Old 03-18-12, 09:18 PM
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Could it be burning up from egt? Are u using a heatsink?
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Old 04-09-12, 12:10 PM
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Originally Posted by ronbros3 View Post
how do i clean O2 sensor , i use premix fuel, 1oz. to 1 gallon gasoline.

AEM only lasts about 1000miles and goes 13.8 staedy, replace sensor and around a 1K fouls up again.

can the sensor be cleaned?? its gettin old replacing just the O2 sensor.
I am not aware of any cleaning methods.

Are you constantly tuning or datalogging or are you simply monitoring? If the car is well sorted and tuned, there isn't much reason to constantly have an AFR gauge present.
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