Passat B6 2.0 FSI BVY - Check Engine and the famous P000A error

Hello

I miss ideas on how to get rid of error 000010 - Camshaft Positioner (Bank 1 Intake) P000A - 008 - Slow Response - Intermittent

I will try to describe the previous exchanges as succinctly as possible.

The car about it is VW Passat 2.0 FSI 150km 2006 year BVY engine code. I bought it on December 1 from a trader. Imported from Denmark.
After a few days, the check engine light came on. After checking, the VCDS broke the above error. After resetting, the error returned after 700 km.
I put in the workshop and it started .

At the first fire went the replacement of the entire timing on the left (exhaust). Belt, tensioner, water pump, rollers replaced. It lasted for 2 weeks, apparently, the mechanic waited a long time for parts ... After this time, I began to get irritated that it lasts so long and I called the workshop and I heard that there is a "thicker problem", the professional stated that I have to change the timing variator. The price is PLN 18,00 per part. I did not agree and I went to get a car. I was told that the car is ready but the error will pop up if I do not mention this part. Ok, I took the keys and I wanted to go over and by the way to go for money to settle the bill and here flap. The car did not fire. I will add that from the purchase to the workshop I made a car 2,500 km, he smoked no strange sounds from the engine, he worked evenly and quietly. Burning was normal at 8L. The owner of the workshop made large eyes and says that the car had just left the workshop. He called a mechanic who did it and he connected the computer and after a moment of searching the car started up, but the engine was shaking like it was going to jump out from under the bonnet.

I said that in such a state I did not put in a car and I will not pick it up, it will lead to at least a form like it was.
From now on I visited the workshop every day and they could not set it up every day. I heard that he was a variator.
After 2 weeks I could not stand it anymore and I said ok, change this variator. Although, in my opinion, this wrongly made timing was the cause.
How I controlled the exchange later I saw that they whitened the engine on both sides (I do not know why).

After a month at the workshop, the car finally went as before. I took him to drive and after 5 km I jumped out again the mistake with which I came to the workshop or P000A. The whole cost me 3800 PLN. The problem has not disappeared.

Previously, the error appeared every 500 - 700 km. After the repairs, after the error is erased, the error appears almost immediately in the range of revolutions
760 - 900.

From then on I started looking for a reason and so on:
- a well-tested roller position sensor (the new one has not been replaced - the same error)
- N205 tested solenoid valve (external resistance diagnostics in standard 11.3 ohms)
- the mentioned variator gaskets under the chain cap
- verified oil pressure 1 bar has a warm engine (and here it seemed to me a bit too low) engine rinse was cleaned and oil sump was smoked. Revised 5v30 valvoline oil and Bosha filter
after these operations the pressure on the engine warmed up at idle speed 1.4 bar at 2000 rpm jumps to 4 bar

I am writing this post because I already have no ideas where to look for the cause. Each advice will be valuable. I hope that someone has dealt with this problem and will share their experience

greetings

Show the frozen frame of the error.

I do not have VCDS but I can rewrite what my colleague printed.

000010 - Camshaft Positioner (Bank 1 Intake)
P000A - 008 - Slow Response - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 0
Fault Frequency: 2
Reset Counter: 255
Mileage: 172329 km
Time Indication: 0
Date: 2000.00.00
Time: 8:43:15

Freeze Frame:
RPM: 800 / min
Load: 29.8%
Speed: 26 km / h
Temperature: 16.0 C

I rewrote everything to make it happen. It was a mistake before changing the timing. Now it looks similar.

Added after 5 [minutes]:

here is another frame from this error

Freez Frame;
RPM: 720 / min
Load: 28.2%
Speed: 52.0 km / h
Temperature: 57.0 C

Does the engine fall into the emergency mode when an error occurs. Are there any other symptoms in the motor operation, power drop, start-up problem etc.

Check the chain between the rollers again. Maybe it is too loose.

Nothing of what you write. The engine fires after the first cranking of the starter. Even at the temperature of -20 C, because there were so many days in us in January.
After firing, the moment goes on sucking and after 30 sec goes down to normal speed, or 750 rpm
.
All the time he works evenly and on a cold and hot engine. You do not hear any disturbing sounds (it works quietly only after lifting the mask you can hear its work). The power is good in every gear.
Burning in the standard at 8L level which is a good result when it comes to this engine
Added after 3 [minutes]:

mario03369 wrote:

Check the chain between the rollers again. Maybe it is too loose.

The chain with the tensioner checked by mechanics and later also checked myself and the visual condition is ok.
It is well stretched and the tensioner is stiff.

Only I do not really compare to another and I wonder if I should mention it. Only it is a shame to charge it if it is not supposed to be because I have already gone over 4k and the tensioner and chain is also not a small expense

Check on the computer what is happening with the suction roller during engine braking and it will be clear.
Maybe pneumothorax works badly?

mario03369 wrote:

Check on the computer what is happening with the suction roller during engine braking and it will be clear.
Maybe pneumothorax works badly?

I forgot to write about it. Pneumothorax was replaced when replacing the timing because it was all crumbling like a cookie in the fingers.
I suspect that from high temperature but I'm not sure. The previous owner probably did not care about the oil because the exchange was black as tar and in addition there was a minimum.

Ok, I'll check tomorrow and see how it looks. If I have logs, I will put it here for evaluation.
You can also write what to pay attention to or how does it look?

Added after 13 [hours] 19 [minutes]:

I came back from the workshop. And there is a strange thing

When checking the variable valve timing it looked like this. When idling, the computer showed a value of 27 and read from the engine was 24.
After adding the gas, the value indicated by the computer decreased even to -5 and read from the engine remained at 24. It looked as if the suction shaft did not change the angle at all.

I disconnected the N205's solenoid valve from the oil pressure in the variator and traveled 10 km. I did not observe any changes in the engine's operation. The power is the same, it works evenly and quietly.

The mechanic remotely checked the operation of this valve and heard clicking when he started it through a connected computer. The valve is also checked externally and the resistance on it is 11.3 ohms. From what I read it should be between 10-18 o'clock.

What could be the reason that the suction shaft does not change the angle ?? Any ideas ??

With this error, I exchanged the entire chain drive with a variator and a valve, the customer no longer complains about this problem. But I know that it is the nuisance of these engines and not necessarily the fault lies on the timing-variator side, sometimes the variator orings are sometimes guilty, sometimes lubrication (oil pressure).