RPM (engine speed) input - to what pin?

[ranz]

Thaks for helping
So, do I get it right.
Primary trigger: Engine speed sensor VR
Secondary trigger: Hall sender
And analog CH7/VR: Reference sensor

When I order my ecu, do I need specify some extra stuff? or it is same as PnP Audi AAN, but wiht standard conector?

[mattias]

Just order a standard ECU with primary VR and secondary "auditrigger", read the notes in the webshop:
http://shop.vems.hu/catalog/assembled-controller-p-48.html

If you want more personal support, turn to a local reseller and arrange to buy everything from them.

The secondary trigger is the VR/inductive reference sensor, that is why ECUs made for this trigger have two VR circuits (LM1815) to filter the signal. The cam sync (Hall) is masked by the reference tooth and is wired to a third input.

Relevant link:
http://www.vems.hu/wiki/index.php?page=VemsAudiAan