Renault Megane II phI 1.6 16V - Error P0420, P0010 and lambda probe parameters

Hello.

Today CHECK turned on in my car. After connecting to the PC and diagnostics with the PCMSCAN program, 2 errors were found.

P0420 - The ability of the catalyst to remove harmful components, the so-called conversion factor (cylinder block No. 1) below the required value
P0010 - Camshaft angle adjuster circuit 'A'

The first lambda operates in the range from 0.07V to 0.85V and presents itself sinusoidally. However, the voltage of the second lambda probe is in place at 0.45V-0.46V, so there is practically no voltage change. I diagnosed the car with a warm engine. Should it be like that?

I'm also wondering the second parameter of this probe -> Oxygen sensor. Short Term Fuel. Trim Bank 1 - sensor 2. The whole time oscillates in the border 99.2% - 100%, so I think something is not playing here.

I add screens from measurements. I am asking you for some tips, because I can not help myself.

You do not have access to the clip. All other toys do not like renault too much when it comes to diagnostics.

At the moment I'm trying my best to deal with this, among others your help. If I fail, I will try to grasp the mechanic with CLIP.

I wonder about the work of the second lambda probe - because somehow quiet about it on the forums, or the sentences are very divided and divergent. If someone knew what parameter: oxygen sensor short term fuel trim bank 1, what it concerns and what it depends on, it would be another step forward. something does not play here but I do not have enough knowledge to grasp it and in the "internet" no one writes in detail about this topic ...

You have run out of the catalyst and the controller sees a break in the timing circuit of the variable valve timing solenoid.
The voltage on the second probe should also change a bit when giving gas to the floor or when braking the engine. There should also be a higher voltage on it for a while on a cold engine.
If it keeps 0.45V all the time it can be damaged but then there should be an error saying that there is no reaction or something similar.
If you have a mistake about the low efficiency of the catalyst, then the voltage on the probe is higher at certain times than it should be.

I forgot to add that the executioner was cut out (incorrect diagnosis of the mechanic who ordered to cut out the kata, which was in working order as it turned out later: /) and a jet pump was inserted.

Today I was on the diagnosis of exhaust gases. Here they are:
Lambda measurement: 1.250 - the standard is 0.97-1.03
Toxic ingredients: 200-350 - standard up to 100

Can these errors be caused by overruns?
What is best to do, try to replace the probe or can you buy and insert a kata again?

Without a catalyst, you will always have an error on the second poll ...

autoas wrote:

Without a catalyst, you will always have an error on the second poll ...

Just not necessarily - my friends do not have katy and after setting up the emulators for the second probe, no error will pop up .. I have the emulator installed, and the error appears. I know that every car is different, but ...

Parameter: Oxygen Sensor Short Term Fuel Trim Bank 1 on the probe in front of the catalyst indicates the level of 7% -18%, while for the probe behind the catalyst it keeps practically unchanged at -100%. Is not the dog here buried, because he sees too big differences?

1. What do you think about it?
2. Maybe faulty wires?
3. Maybe it's time to check the coils?

I had in mind a normal solution, a factory ... and not an abnormal one, the emulator would settle matters for some time
You have to decide for yourself. How do you want to fix it ...

When there is no catalyst 1 and 2, the probe works equally {physics will not fool}. No emulators can solve the problem. Buy a catalyst, insert it, and you will have a malfunction. Please do not write to people that the emulator does the trick. You had an error P0420, and no kumaty mechanic cut out the kata, change the mechanic.
Greetings Andrzej.

kamiloskop wrote:

all other toys do not like renault too much when it comes to diagnostics.

They just like to know and understand what they want to say. Clip is not a sensation and he does not repair the renegades himself, the more irreplaceable he is.

jarekk93 wrote:

Today I was on the diagnosis of exhaust gases. Here they are:
Lambda measurement: 1.250

A poor mix. On this buying up and on the error from the electro-valve of the variable valve timing. As for the probe, your colleagues have already written above. Insert the catalyst and after the problem.

jarekk93 wrote:

However, the voltage of the second lambda sensor is in the place at 0.45V-0.46V

After erasing the error also happened? Generally, if you do not have a kata, the signal on the second probe should be close to the one on the first one.

jarekk93 wrote:

If anyone knew what this parameter is: oxygen sensor short term fuel trim bank 1,

In brief: This is a short-term correction of fuel dosing. It consists in monitoring the probe voltage and introducing such changes of the injectors opening time to reduce the excess air factor = 1. Particularly important at low loads and slow revolutions.
The second mechanism of self-adaptation is the long term fuel trim (long term fuel trim) which decisively affects the engine's operation in the full range of rpm and loads, in addition to the free spins.

Thanks gentlemen!

I've got answers to the questions that torment me. I put the catalyst back in, and I've said goodbye to the mechanic for a long time.

I think about the subject as closed.