Hi

From start sorry, that my english is not so well.

I have a Aeb in my audi 80. 3 days before i start to changing my engin harnes and ecu from m 3.2 to m3.8.2 and 3.8.3.
I make a short connection +, -, and k- line. Check that ecu is ok and remove immo (9A-50) and check that is ok. I start engin and see in vcds that is working. So I put a harnes, connect rpm vss and power from relay. After that I connect vcds see that is ok and start engine; and i see message" controler not response". I check with another ecu and it's the same. I make another power connection to obd2 and short connection to k-line, i change options in vcds and vag-com(i have another interface for vag-com).
I ask on some polish forum, and they don't know what to do. When i connect interface when car is running i see "interface not found".
Maybe someone of you will be have advice ?

Yes i connected it. I try cut a cable and check again

I connect vss from sensor to cluster and from this cabel to ecu. I cut it but nothing change.
I have some idea i connect vss to pin 20 and it's speed output pradobly, but i don't see input..

Faen. Still nothing. I delete immo from my third ecu (agu) with finish number cj.
And that same. I cut rpm,vss signal.

This i see in test.


This is after engine start


This is deleting immo



I also clear dtc code in eprom but when i connect ecu i see

I clear it, and dont come.

I use polish interface from viaken it works with vag-com 409-1.

I also have autocome clone (cdp) i don,t used it. I do it soon.

One guy on polish forum see to me to connect + stright from battery, -  from ecu and k-line closer to ecu. I do it ang nothing.

Yes that right.
It's strange because when harnes was outside car it work's fine.
Ok i check it.
It heve around 12,7V; when engin starting goes to 10V and later have 14,3V.

One man say that it will be good to chack useing oscilloscope, i don't have it, but i will buy it.