O2 sensor cleaning

[John B Kobberstad]

What can I use to clean inside O2 sensor without damage?

Topic

[Wayne]

Think MAF cleaner would be the only thing I’d ever trust to try. If it’s that easy to get off I can’t imagine it lasting that long though..

[college man]

usually we don’t clean them.we replace them.But
try some brake clean or as suggested maf cleaner.

[John B Kobberstad]

Took it out and tested it and with the propane torch I got no voltage readings when I got it to glowing hot. No, I didn’t look for voltage with the 2 white wires for the heater circuit, used the black (output wire) and the grey (ground)wire to test for voltage betweei .1 and .9 V Gonna save the bad sensor and try the lacquer thinner cat clean out with it in, after that I’m going to convert the bad sensor into a pressure gauge to test catalytic converter back pressure as seen here.

http://www.youtube.com/watch?v=YPQBFvPTV14

[Charles]

Don’t think cleaning would help but seems to me that something that has a normal operating temperature upwards of 600 deg would not respond well to regular solvents. I would try what you use to clean spark plugs. We used a sand blaster in school but I haven’t cleaned one since.

[John B Kobberstad]

Changed my icon to a happy face, problem solved. Didn’t clean the sensor as I found it to be a bad sensor that no cleaner is going to fix it. I’m happy.

[mckrishes]

Yeah, better to replace, especially with all the good coupons going around lately.

[EricTheCarGuy]

Yea don’t clean O2 sensors, they weren’t meant for that at all. If you find a bad one replace it, cleaning is not an option.

[Author]

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