The car is only firing on 3 cylinders, there is a good spark to the missing pot so it is either engine (doubtful at only 40k mileage) or a fuel fault, injector? there does not appear to be any petrol smell on the spark plug when removed after running so this seems to confirm this, any ideas?

Zeebra 3, September 2010

Thanks, Ive got a tuning guy coming down tomorrow as Injectors are beyond me !!

Zeebra 3, September 2010

From what you have said - lack of fuel on spark plug- suggests faulty injector or activation of

Maurice, September 2010