Hi all i have recently developed a problem with my car a focus ST170 where it is miss firing and spluttering with a significant drop in power it has developed this problem whilst taking long corners i.e. roundabouts it dies right down at whatever revs and gets worse the more the accelerator is pressed, not entirely sure what the problem is but with it beeing intermitent however more frequent than not ford cant seem to see the problem so any help would be brilliant
Cheers Danny