[Devondan]

OK got my 400 running nicely after doing the valve shims, but it didnt cure the occasional stalling (prob optimistic anyway!) and now its stalled seriously - it wont start at all! the fuel pump isnt priming, Ive checked the relay and it is working, there is power to the pump feed but the relay isn't being switched, I guess the Ecu primes the pump then switches it off until the engine is running or is there a fuel pressure switch in the pump to switch it off when its up to pressure?

Damn electrics! The relays work on the bench and I have taken the cover off so I can manually switch it. If i switch it on the pump runs but doesnt switch off, its supposed to do so when it gets to pressure, so I seem to have two problems, one lack of pressure and two lack of relay activation. Ive checked the obvious connections and kill switch but no joy so far, may just have to bite the bullet and take it to the dealer.

Dan