Hi, i have a mk3 2.0 8v engine code AGG and i have a slight misfire that is constant throughout the rev range, most noticable at idle or when the revs are held at any rpm. The car smells like its running rich and it barely passed the emissions test on the MOT. I have checked the spark plugs and spark plug No2 seems very white compared to the rest, also there is a small coke build up in all the cylinders bar cyclinder 2. Any idea's, im thinking that maybe there is a fault with the injector Thanks
