slight problem with my coupe 2nite, went for a drive with mates, parked up and turned engine off straight away, went to petrol station 15mins later and as soon as i stopped the engine cut out. didnt really think nothing of it. came back to start car and it wouldnt start unless i kept pressin accelerator pedel. got it to start but wasnt idling properly and as soon as i took foot off accelerator it die'd again. but everytime heard a tapping from top left corner of engine. took about 30mins of checking everything. a mate turned up and revved it to the limit and it all starts fine, idles great n runs great. no more tapping. is this a common problem with these engines? and i dont want to drive for 2 hours toon sunday for it to die on me.