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Summary of change:
Audi A6C4 1995 (1996) AAN engine installed in 2025 (Vizsgaztato Pityu) ---- '''Crankhome VR''' trigger see TriggerScoping and InputTrigger/AudiTrigger Checked crankhome-VR with DSO138 scope. It was -peak first, than +peak, NOT good, had to be swapped as instructed on VemsAudiAan * '''Swapped red and violet wires.''' ** Checked crankhome-VR again with DSO138 scope, '''now good: +peak first, -peak later''' since LM1815 triggers on negative going zero crossing. http://www.vems.hu/files/MembersPage/Quattro/Audi_A6C4_AAN_2025_install/DSO138_Audi_AAN_20VT_crankhome_positive_peak_first_for_VEMS_ECU.jpg The wires were good with red in middle (maybe contradicting the VemsAudiAan page but scope is always right). http://www.vems.hu/files/MembersPage/PeterJensen/audi_trigger/stik_trigger_morm.jpg ---- '''Engine started on first attempt.''' Actually it was behaving, and powerful... But owner already contracted with some VEMS tuner (maybe Kulinpapa?) to tune it on 4-wheel dyno the next day. So we did not press it. But lambda was at least quite reasonable at high power also. * overrun fuelcut (when throttle is released, but engine RPM is still high and fuel is cut so engine goes to idle) could be somewhat smoother... ---- * [http://www.vems.hu/files/MembersPage/Quattro/Audi_A6C4_AAN_2025_install/v3.3_u021315-A-2025.04.24-15.53.LehetMenni1.zip log and config zip] with 1.2.38 firmware
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