Blauer Qualm und stark unrunder Lauf nach PDE Instandsetzung | Posts 16+

29-08-2022, 17:47 Subject:

Okay, hier ist die Übersetzung:

"Please provide the following information: {NAME}, {EMAIL}, {PHONE_NUMBER}, {ADDRESS}, {PRODUCT_NAME}, {QUANTITY}, {PURCHASE_DATE}, {PAYMENT_METHOD}, {NOTES}." Can I do this with a standard commercially available compression tester, or do I need something special for a diesel/A2 engine?

dieselschrauber · 29-08-2022, 18:46 Subject:

Hello,

What do you understand by "in accordance with common practice"?

To test the compression, the glow plugs must be removed and a corresponding adapter must be screwed in.

The wear limit is 19 bar per cylinder, or a difference of 5 bar between cylinders.

For a 21-year-old car with over 300,000 km, I would perform a preliminary test / compression test with an oscilloscope before removing a spark plug.

Best regards

Michael

29-08-2022, 19:40 Subject:

Actually, the light bulbs always come out easily when using an AMF.

29-08-2022, 20:47 Subject:

Headlights out when the engine is warm, then it works &#128521;

29-09-2022, 13:50 Subject:

I'm sorry, it took a while. But now, the compression measurement from Audi is available.

Cold State:
Z1 23,1
Z2 21,3
Z3 21.3

Warm State:
Z1 24,3
Z2 22,9
Z3 23.1

Furthermore, there were no further memory errors, and the symptoms remained the same. The endoscopy did not reveal any abnormalities. 14 days ago, I had just replaced the temperature sensor, but that didn't improve anything.

Audi is experiencing issues with its AGR valve, as it is also emitting a strong smell of fuel.

Could you share your guess, or do you have another idea?

03-10-2022, 19:24 Subject:

Hi,

You can see what the AGR valve is doing by looking at the "Is" air mass values at idle.
I would now say that a support ticket would be appropriate.

Best regards, Rainer

04-10-2022, 8:05 Subject:

When I temporarily disconnected and sealed the hose on the AGR valve, the engine ran smoother after the first start. The third cylinder was only injecting 1.45 mg/h. On the second attempt, unfortunately, it was back to square one.

How to create a support ticket?

04-10-2022, 12:55 Subject:

If the Agr is no longer closing properly, then a closure plate must be installed.

04-10-2022, 19:42 Subject:

PlayGamez wrote:

When I disconnected and sealed the AGR valve, I performed a test. After the first start, it was better; the engine ran more smoothly, and the third cylinder was only injecting 1.45 mg/h. Unfortunately, on the second attempt, it was already back to the old one.

Huh? 1.45mg/h is not discernible as an injection amount, the value cannot be provided by the control unit.

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