hi peeps having trouble starting my 1.6 petrol focus,hot or cold, for a while now. it cranks over for a good few seconds before spluttering to life,then its got a real lumpy/low idle for a few seconds. its a 01 and got 97,000 miles on it, dealer serviced up to 73,000 miles when i bought it from my ford dealer, it had the cambelt changed at 70,000.
it sometimes will bring on the engine management light with a code for misfire detected cylinder 1,2,3,and 4.
it also feels very slow compared to a mates 1.4 focus and is heavyier on fuel than my old mondeo 2ltr ghia
i have changed the oil and filter with castrol 5w30 magnatec every 5000 miles
changed the plugs numerous times tried motocraft, ngk,denso and champions all made no differance, but were very sooty when removed
tried swaping my coilpack with my mates 1.4 one (mine in his, his in mine) made no differance to either car
i am at a loss what could be wrong with this car?