ARL enorm hoher Verbrauch + Leistungverlust | Posts 16+

Herbert wrote:

Maybe. Let's assume that the values for boost pressure, air mass, and torque limitation are correct, then there should also be enough air reaching the cylinders themselves. Have the intake manifold and intake channels been checked? Compression confirmed? So far, you haven't mentioned anything about the status of the injectors (in VCDS: idle behavior, injector status, shift times) or the camshaft. Here's the translation: Furthermore, regarding the mechanics: Perhaps the NW position sensor or its bracket was damaged. In that case, the nice -0.6° synchronization angles are useless. Are the cables, etc., to the OT sensor on the crankshaft also in order? What is the valve timing like when the sensor is disconnected? Is the tensioner wobbling? Is the planetary gear stuck? hg Herbert

I'm not sure if we can accept the data regarding boost pressure, air mass, and torque limitation, which is why I conducted those log tests. I wanted someone to directly examine the values to confirm whether they are all within the normal range. Torque limitation, smoke reduction, etc. – those terms don't really mean anything to me.

The intake ports were cleaned, the fuel injectors were sent out for inspection and cleaning, the cylinder head was rebuilt with a new camshaft and new hydraulic lifters (as expected), and all stretch bolts were replaced.
Charge air system 100% leak-tight (pressure tested).

now please don't say "you must have done something wrong" or "that's definitely something you did wrong," it might be, but as I said, the consumption was exactly the same before the procedure, so please only offer constructive feedback or take a look to see if everything is okay with my logs .

-0.6 is the specified time.

-PD (Have the spray pattern checked) Ensure stability and levelness all around, with the nozzle set at 180 degrees.

- Compression is correct.

NW Hall sensor replaced yesterday for testing purposes; a working one was installed. No changes were made, then the ignition timing was adjusted a few times, and now it's at 0.0.

Tighten the tensioner and adjust the tension correctly.

Okay, so I'm going to rule out valve timing for now.

lucasbrandy wrote:

I'm not sure if we can accept the data regarding boost pressure, air mass, and torque limitation. That's why I did my test drives, so someone could directly assess whether all the values are normal, for example, the torque limitation, smoke emission, etc. I don't really understand any of it. ......now please don't say "you must have done something wrong" because that might be true, but as I said, the consumption was exactly the same before the procedure. Please only offer constructive feedback, or maybe take a look at my logs to see if everything is okay

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What exactly do you mean by what I've been watching?

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-PD (Have the spray pattern checked) Ensure stability and levelness all around, with the nozzle set at 180 degrees.

Where are the measurements regarding the condition of the PDE's?

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-Compression Matches

How many bar on which cylinder?

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Yesterday, I installed a Hall sensor as a test, and it worked. No changes were made.

Was the installation orientation checked? Cables checked?

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Okay, so I'm going to rule out valve timing for now.

I'm not ruling anything out yet.
Herbert.

Herbert wrote:

Question for the PD specialists: While the header text in MWB 003 of the ARL MSG mentions "exhaust gas recirculation, target and actual," doesn't that refer to the air mass? hg Herbert

Yes, these are target values for air mass, and the target value at full throttle should rather be interpreted as a minimum value.

Best regards, Rainer.