Renault Scenic I Phase II 1.9 DCI Bj 2002 does not start

Hello dear Froum friends, have since yesterday the problem that my Scenic Bj: 03.2002 1.9 dci, 102PS no longer starts. It happened so, I was sucking my car thenach I drove off and at the crossing at the turn it just went out for me. ADAC called, checked and tapped, diagnostic connected. This has found some errors, deleted, tried to start, gurgled but does not start, error read out again, error again inside. The friendly mechanic has m I said the engine doesn’t build enough fuel pressure, either it’s some kind of switch or the high pressure pump. You have to check the fuel injection system complete. My question I’m a car trainee and I looked at it once, go to the high pressure pump 2 hoses these I looked at the start times if there is fuel. Does not come so the pump doesn’t work. Filters clogged? then I’ve bridged these 2 hoses 1 is feed and other exhaust so 2 hoses 1 container with diesel and start but nothing new happens. So you know such a problem or can tell me how and what I should be able to check now? Maybe a small electronic built-in is broken which leads to the complete system shutting down and thus no fuel arrives. Pressure regulator=? at the Rail ? Ot-geber=? Have tried to start with startpilot but brings nix pretends to start but no big ones thanks in advance 😉