Error P0420 Catalyst system, cylinder row 1-function below threshold

Hello .
I just saw this error. From what I've already read on this topic, it's enough to turn on the emulatorsond and it should be OK. I bought a car a few days ago and it turns out that the emulator is already screwed. can it be the cause? A broken catalyst, probe and maybe something else. I am annoyed with this lam and I would like to remove the cause. Has anyone succeeded? Thank you in advance for your help. I will add that this is the Skoda Octavia 1.6 MPI. Something seems to me that in the German engines the probe is a bane. In Japan, it somehow falls out better.

Damaged probe rather not because then you would have an error talking about the inactivity of the probe but it is worth checking in blocks what it shows.
The most probable cause here is the catalyst - worn or missing, there may be no cartridge inside.
It is possible that the emulator that is mounted there is badly made - too small probe offset or too large hole in the emulator.
Yes, you think - it seems to you.
I somehow do not have the impression that probes sit faster in German cars.

I think that there is no contribution because you can see welding around the catalyst. But is it possible to check whether the catalytic converter is there and if it is operational? Is there any other way to turn this lamp off. It annoys me terribly. I will check the probe and let you know.

First, we remove the fault. In this case, it is most likely to replace the catalyst. Then we delete the mistakes and drive an efficient car.

And how much such a catalyst can cost. I saw on the net for about PLN 500. to swallow but they are probably replacements. Is it worth to mount such a thing? Is it better used but the original? All in all, I would prefer to mount a catalyst and have a problem with my head. The emulator reflects the probe down significantly below the chassis and the probe I can lose sometime. All the more so because we are approaching the winter and the drought may not be difficult.

The flue gas analyzer, but if it was welded, maybe the cartridge was torn and removed because it buzzed or someone took it out for money.
Is the catalyst for 500zl worth something?
I would not put it in my car.
If someone too old can give 250 PLN, he takes it to a larger company which gives him more for it because those who buy something sell it and do it for free. Then someone recovers from this precious materials, makes a new contribution and puts it in a new housing, inserts it into the store and all this in 250zl where in this amount is already the profit of the store, the price for a new housing, tax, etc.
You have to think logically because something stinks for me.

The catalyst for 200-300zl is the money expelled. A better catalyst that starts running costs under 1000 zlotys

I found. There is a guest in the area who deals with silencers, etc. For my car, the cost of the catalyst is 900 PLN.

How You have to give it. But please do it so go to someone who has an exhaust gas analyzer and do the analysis to take the printout. After changing the catalyst, burn it or do it from 30-40 km and do the exhaust analysis again. Then compare the results and you will see what was created.

I was just on the analyzer and that's what came out. The first picture on low speed and the second on high.
[Img]
https://obrazki.elektroda.pl/5191291700_1511380644_thumb.jpg[/img]

Which year of this Octavi?
WHAT is too big.
HC 238 may indicate a lack of catalyst. Of course, provided that the engine runs smoothly, the ignition does not fall out and the engine does not take oil.
Please check why CO is exceeded. It proves a rich mixture. I hope that the car car worked in CL or closed loop. Because if there is a broadband probe, it is best to check with the diagnostic tester in hand. Then you can see if the car is working in a closed loop. I have checked several times and for example how the engine will go out and start again It is sometimes necessary to wait even a few minutes, which always amazes me. I noticed this only in 1.6 skoda vw etc. with a broadband probe.
Check the suction manifold for leaks. And all connections between the filter and the suction collector. Check the tightness of the exhaust, in particular from the head to the second probe. There is no right to be any purging here.

[movie: d94cbda12e] https://filmy.elektroda.pl/33_1511449836.mp4 [/ film: d94cbda12e] What is a closed loop? Probe rather broadband, six wires of course the first one before the catalyst. At low revolutions the engine wavers a little, the pressure in the collector also a bit of a wave - it may be so. It does not take oil. I did not do the entire 1000 km with this car, but if it took, I think it would be visible. What interesting me. As the car I bought the error 420 showed up more often because after about 30, 40 km. Yesterday I drove the car on the highway for about 100 km and there is no mistake. I have a video from the work of the probes but I will not paste it here.

Welcome back. I checked the tightness of the intake system today and cleaned the throttle. I also exchanged candles. I did not find any leaks. One thing that puzzles me is that I was not able to adapt the throttle. Candles that I made had different colors, from gray-silver to brown and black. My question: Can fuel injectors have an effect here?

Welcome back. I wanted to learn something about the temperature of the catalyst.
Now I've got the car interface plugged in and I noticed that it shows me the catalyst temperature -32. On channel 43 it also indicates a value of 0.4V, sometimes it will jump to 0.3V. I will add that the car was cold and the temperature outside in the 0 degrees limit. I have a problem with the catalyst because I sometimes get an error 420. The catalyst is physically but I do not know in what condition. From what I know, the catalyst checks the probe behind the catalyst. My question is about whether this is actually the second probe and whether such a temperature indicates a fallen probe / heater? Or maybe about some other problem.
Regards and waiting for hints.

The second probe can have a higher resistance of the heater due to wear ... this may cause erroneous analysis of the heater. I checked. The heater was 7.6 ohms and it was P0420. I replaced it with the heater where it has 7 ohms and is ok.

Added after 1 [minutes]:

Of course, it's about the exhaust gas analysis, not the heater ...

Hello,
If anyone else is interested in this topic, I had the same problem (in the Audi A3 1.6 MPI car). I have an old catalyst, rather remains of it, the probe was checked with a meter and worked. The mechanic installed a probe emulator for me, but electronic (cost with assembly PLN 300). He told me that those from the allegro for a few zlotys (tube with a hole) will not solve such a topic and they will assemble the electronic ones and everything works as it should. So far, the check has disappeared and does not appear.

Hello. Let me (quite late) add something from myself.
A few years ago I had similar problems in Hyundai getz. There was an emulator (the one from the Allegro) for the second probe, and it was ok for about a year, but then this error started to appear again. It only helped to unscrew this emulator and weld this hole in there (it probably has 3mm) and re-drilling only a smaller size, the car has been running for maybe 7/8 years and nothing shows up so far.

Well, I can add a correction to my previous post. After 100km, the check crashed again. Computer removal of the second probe helped. Check is gone amen. This is done by downloading the current program to the computer, deleting the second probe and uploading the entire program back to the car. Such a thing works when the second probe is only diagnostic, like mine. In some cars, it is not only for diagnosis from what I learned and then it may not be so easy.