Had my ST for about a month and has been running fine. Untill last week just wouldn't start properly one morning. Was kind of juddering on startup for a few mins then cutting out. Then after a while it wouldn't start at all.

I replaced the spark plugs, ignition leads and fuel filter as all hadn't been done for a while by the looks of things. Car has been running fine for a week or so now. Until this morning where it won't start again.

Help/advise please as I'm getting really concerned now!