After a "professional" screwed a head gasket replacement up and denied liability I have been working on this over to last year to get it going again, it has become a project and "I will not be defeated" car fo me now. After the idiot had worked on it I later found that the engine smoke and power issues were down to none of the intake and exhaust and other bolts being installed correctly, some I undid by hand. In the course of re-doing the work I found the No.2 valve lobe had worn through the seat so I got a new head, replaced the gasket and very slowly put it all back together using the guide here. Unfortunately it refuses to start, I have so much invested in this I am loathe to give up on it but need some focus to help me work through the problem. Bear in mind that it is best part of a year since it last ran. I have tried vag-com but no errors show, which could be down to not running, I know not much is needed to get it going - Compression, fuel, timing but where should I begin. I have used a vacuum tester to pull fuel through both sides of the filter and also replace the filter. What next, undo a plug, try to start and see if any gets ejected? It's the 1.9tdi, 2001, non PD ALH unit.