My car is playing up, sometimes run normal and sometimes run like in 3 cylinders, and when that happen the light of traction control comes 'on'. What I noticed that when the engine is hot I stop the car and turn on again and start to run normal again. I begin to think that perhaps would be injector, and start to mix an injector cleaner on diesel but and the same time, if would be injector I thought would be on loss of power all the time not just sometimes ??? Maybe somebody have same idea what can possibly be? Thanks.