Amarok TSI non start
 

Morning first I work in VW dealership and am working on a TSI amarok so I mid help.
​​​​​​​The car came in the workshop havin an oil leak from the tappet cover and vaccum pump. I replaced the gaskets took a test drive and the oil leak was gone. The following morning the car could not start, I run GFF and picked fuel pressure too low, replaced the fuel pump and fuel lines as there was a slight leak from the lines. Now the vehicle won't start but now the Machine pick open circuit from the engine control unit. What can I check b4 jumping to engine c.u

First posts normally go in introductions else you could get a free fix and we never see you again!!!

If you work in a VW dealership they have the latest equipment for testing and a scan. What error codes are coming back?