Rick's Free Auto Repair Advice

Posts Tagged: clean an oxygen sensor

Why you can’t clean an oxygen sensor

You can’t really clean an oxygen sensor to make it work If you do a search for how to clean an oxygen sensor you’ll see all kinds of techniques. That may lead to you believe that cleaning yours is a good idea. Unfortunately, there’s no way to clean an oxygen sensor and anyone that tells you otherwise is someone who doesn’t have a clue as to how they work. How an oxygen sensor is made An oxygen sensor is made with a porous zirconia “thimble as the base material. It … Read More

Clean an oxygen sensor

Can you clean an oxygen sensor? Technically yes. But in reality no. The pores in the gas permeable electrodes allow oxygen ions to pass through, but they are so small that no cleaning solvent can possibly penetrate and clean them. In other words, if the pores are clogged, they stay clogged. Do a search for cleaning an oxygen sensor and you’ll see all kinds of advice on how to clean oxygen sensors. They’re all worthless. Those posts show you how to clean the external shield. Great, that gets you zip … Read More


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