the plugs r new iridiums only went in a week before the intercooloer,iv checks spark,theres fuel,i replaced the afm thinking it was that as it would be the obvious problem,it starts d odd time,spluters like its missing and dies,n wont start again for ages,all plugs and leeds are in the right places and to b honest werent touchd installing the fmic neway Just a thought but did you replace amf with a new or second hand 1? also are you running an after market filter like a k & n or something ya iv just put on a new hks filter,had a pipercross from day 1,its a second hand afm i got but the electrics are good in it,il try the plugs tomorow when i go to the garage,