Is troubleshooting a tandem pump possible using diagnostic tool 23?

Hi,

How is the diesel fuel distributed within the cylinder head?
If we're talking about a BKD engine, for example, an A3, or a BLB engine, for example, an A4 (let's assume models without a DPF),
The tandem pump is weakening, for whatever reason, and this can...
Yes, general deviations in the MWB 23 standard will result in (see). Sure, here's the translation:

'Technical article.'

Here's the translation:

'The question is, could it be possible that, for example, PDE 4, which is located close to the TDP,...'
still getting enough, PDE 1, but not? Or would that be due to the design principle?
excluded?

Could there be complaints arising from the quantity regulation he is trying to implement?
Give more to cylinder 1, since cylinder 4 is already getting enough, and this [issue] is causing it to misfire or [something else].
Does it exhibit restless behavior?

If the measured values worsen from 4 to 1 in the MWB 23, what would that indicate?
And what if the values of 1 > 4 become worse?
Or does a leak, no matter where it is, always mean that everyone has to 'run away'?

Can one infer, and perhaps even detect, leaks in seals on the pressure differential devices (PDs)?
When/where would that be?