Look for ECU 2007 Circuit digram

Hi All,

I have some sensor problem engine light is glowing red without any problem , changed o2 sensor Bank2 and now light pop up for o2 sensor Bank 1, these sensors are quite expensive, Electrical expert notice that some voltage issue and he is searching ECU circuit digram for my Skoda Fabia 2007 model, any help would be highly appreciated , it is shame that Skoda has not  put all digram online for customer benefit.  Please note my ECU model details .

Thanks 

Regards raky