G28 Encoder Position: Find & Troubleshoot

Hello,

I'm having the following problem:

I installed a V6 TDI (AFB) engine in my boat. The engine originally came from an automatic transmission vehicle. Now, I've installed a dual-mass flywheel from an AAH (V6 gasoline) engine. The starter motor from the TDI fits. I'm not using a clutch bell. The G28 sensor is mounted on a rail, allowing for continuous adjustment within a range of approximately 30° on the flywheel. The engine runs, but only after experimenting with the sensor's position. I just want to avoid damaging anything...

Question:
Does the engine control unit actually receive the signal from the sensor when the corresponding cylinder is at Top Dead Center (TDC)? Probably yes, otherwise the G28 probably wouldn't be named that way. } If that's really the case, I could rotate the engine to TDC and align the G28 with one of the six recesses in the dual-mass flywheel.
I just want to be on the safe side. Unfortunately, I haven't found anything suitable in any of the SSPs.
Here's a similar problem, but unfortunately, there's no solution either.
/viewtopic.php?t=10114&highlight=ot+geber

chaerte wrote:

Does the engine control unit actually receive the signal from the sensor when the corresponding cylinder is at top dead center?

Hi,

If your engine has the TDI-typical sensor disc with many teeth and 2 opposing gaps, this gap will not pass the sensor at the engine's top dead center (TDC)!
The "Lücke" (gap) likely marks the beginning of a calculation cycle, within which the motor's top dead center (TDC) occurs at some later point.

If you absolutely don't want to break anything, check on a normally installed engine where the sensor is located relative to the crankcase, and fix it in the boat at exactly this position.

No, he doesn't just have two gaps.
The original clutch plate for the automatic transmission had 6 pins evenly distributed around its circumference. The flywheel had 6 corresponding recesses distributed around its circumference. I adjusted the G28 by swapping the two cables, according to the ELSA documentation. Does this method still work?
The sender is located in a different position in the AHH transmission compared to the AFB transmission. And unfortunately, it's impossible to take measurements once it's installed.

I might be able to take a look at the V6 TDI at the SSP tonight.

Here are some diagrams related to the G28. However, I'm not sure if they show the exact details or if they just provide a schematic explanation of how the measurements are taken.

m;

I have the SSP manual too. It doesn't really contain much information. But maybe other TDI SSP manuals do?

chaerte wrote:

The original clutch disc for the automatic transmission had 6 pins evenly distributed around its circumference. The flywheel had 6 recesses distributed around its circumference. I adjusted the G28 by swapping the two cables, according to the ELSA manual. Is this method still considered valid?

No idea, so I'll have to disconnect.