Help!

Hey folks.



I am not sure if I'm posting this in the correct area, but I hope you can help. I own a MkIII 2002 Espace 2.2dci.



I have been plagued with an engine issue. My vehicle seems to decide when it would like to start, some days it does, some days it don't. It turns over but doesnt actually fire up. It will always go on a "bump" start so long as there are no engine management lights. It also tends to cut out while driving.



I have no idea what is wrong with my vehicle I have had several people look at none of whom have any idea exactly what the issue is. Some have said it could be crankshaft sensor, some have said it could simply be a loose wire.



I use my car every day and need it to be reliable. I would appreciate any help and advice you guys could give.



Thanks



Dion