Hello, good day, am looking for specialists in the electronics of the AAH motor 2,8 v6 audio 100 bj 91. approx. 255tkm. I am looking for my case, which does not bring any sparks anymore, were exchanged in between KW sensor, hall sensor, speed sensor, hitachi control unit however 4A0906266A replaced by 266AB, endstuff module, all by new parts except control unit. Can not imagine that both are defective. Tooth belt checked is missing and has driven in between even only 70tkm. Cable tree with easytronic for short circuit and passage tested, permanent +, controlled +, mass on the control unit also ok. Integrated alarm system with wgfs in the central locking pump is also replaced. But found that no signal at the entrance of the endstuff module can be used for excuses. Therefore, as described, I don’t know which direction. I can also not always use the vehicle to test what is welcome for me.