Cleaning Lambda Probe: Chemical vs. Ultrasonic Technique, Costs & Effective Methods

At the outset, I would like to point out that I am aware that the theme "smears of onion", but I dare to ask - what do you think about this subject.

The accumulation of soot on the oxygen sensor causes a reduction in the rate of its reaction. In the case of standard zirconia probes, the cleaning procedure does not seem to have much financial sense, but the broadband probe is still a cost of 500 PLN and it may be tempting to extend its life a bit. Of course, mechanical cleaning does not make sense, because in this way, we only clean the outer cover of the sensor, which dirt does not have any effect on the functioning of the probe. Only chemical cleaning - "rinsing" or ultrasonic cleaner is at stake. In the network you can find various suggestions as to what kind of middle you can "cleanse" / pour into the washer. The most common suggestions are: extraction gas, isopropyl alcohol, kerosene, motor cleaner, water with the addition of detergent. What will effectively remove the accumulated soot, but will not damage the ceramic sensor of the broadband probe?

What are your opinions on this topic? Maybe you tried which of these funds - what were the effects?

I used acetone and say yes. the probe went in ch ......

the topic can be compared to turning brake discs.
You can, but what for?
The probe withstands say 100kkm and even let it withstand 50kkm. It is worth babbling and trying? not having any certainty that in 2 days someone will not come and say that it is worse. ... In my opinion, it does not make any sense.

Jarzabek666 wrote:

You do not know if it will be 2 days or 2 years, that is why it is always sensible.

How do I earn on cleaning and robot no Max 300zl I prefer not to do ...

I suspect the blame in the aging of platinum materials of diffusion electrodes and solid electrolyte (the principle of operation of a galvanic cell). After which the distance falls depends on the condition of the engine and the purity / temperature of the exhaust (whether the car has LPG).



The only thing that in my opinion could bring some effect extending the life is the change in the reference value in the controller, if it is possible because in these new inventions I am not up to date.

I bought a used UEGO probe (NTK LZA15-A1) for PLN 50, and despite the fact that it looked clean from the outside, I cleaned it in an ultrasonic cleaner in about 10% aqueous solution of VOIGT VC242. The content of the washer was black. Then I rinsed it in clean water in a washer and again with water under pressure. After that, she dried a few days in a warm place (about 45 * C). The probe regained speed of reaction, unfortunately I do not have the equipment to verify the correctness of its indications. The car on it burns about 0.5 l / 100 km more but rides incomparably better than on the old poll (until you want to "press", so probably and hence a little greater combustion). Under comparable conditions, the washed probe indicates a slightly higher oxygen content than the old one (with over 200,000 km), but on the old one it happened that the controller "cut" the injection dose with a stronger gas addition.

It would be nice to check the reproducibility of the procedure, and whether the probe has not undergone some "recalibration" if you can say so.

Interesting matter, however, when it comes to selling this as a service?

I once tried (experimentally) to clean the standard probe only with some kind of spray "egr cleaner" and compressed air, and when it comes to the graph it "softened" and narrowed in time. There were also some positives but for how long, I do not know.