Hi,ive got a bugeye wrx,and occasionally its keeps throwing up eml light and losing slight power,and doesnt sound right, and engine is slightly shaking when on idle,had a fiddle with it,and it seems its a dodgy lead(ht?) on no 1.(nearest to driver),if i wiggle it it goes back to normal,and its fine,it only does it randomly or is it the coil.So my question is new lead(s) or ?Dont want to purchase items,that might not cure the problem,any help would be appreciated..Its the pencil type of coils i think,ive included a pic.its doing my head in! Thanks stu