No ignition pulse
 

Hello!
I have. A 2010 Audi a5 B8 2010 with the 2.0 TFSI engine in the shop. All coils, plugs and the ecu has been changed. But still cylinder 1 and 3 are not getting spark. No trigger signal from the ecu (as been coded to the car). The fuel pump runs and cylinder 2,4 seems to work. I am at loss at this point. Any ideas?