MembersPage/DesmondAudi (2010-06-26 11:10:44)

Audi-AAN/ADU/ABY installs are usually quite easy and smooth nowadays. Rarely (these are almost always home-modified setups) there are some issues. This is one of those cases.

Conclusion:


We'll investigate how we can tell in advance if an engine has this type of HALL sensor or the "mostly-5V".

Motronic is apparently less sensitive on VR-HALL relative position.

Scopeshot of crankhome-VR and HALL:

desauld_crank_plus_cam.jpg

In any case,

The cam sensor is stock AAN unit. I tried replaceing it with ABY but there was NO diference to performance.


But what kind of HALL sensor is that ?

The VR noise signal (4 evenly spaced noise)

Can i remove this inverter ? I have some electronic skills and am willing to try if showen with a picture what to do. Thanks des

Yes.

v3.6_sec_trigger_1_m.jpg

Image is from GenBoard/Manual/InputTriggerHardWare

Disassembling+assembling the Motronic-55 device requires a bit skill or patience, appr. 20+20 minutes

Thank you for the cooperation !

If you link your vemscfg actually used accessible from here (so one does not need to register), I can help changing ignout sequence with 2-3 positions and trigger tooth by 9 so the final effect is 2.5*144=360 degrees.