* trigger plate / rotor (where ?) Triggerplage is on top of VEMS box bottom right corner. 4 slots. Rotor is all the way to the right in the picture (just half of it you can see).

* This probably gives one trigger pulse somewhere btdc (adjustable) for each cylinder.

** likely, but some confirmation would be nice. How do the windows look on the rotor? The distributor follows cam speed so it gives a pulse exactly when the coil should ignite.