Hello! Have a problem again with my FIAT Panda 1000 i.e. and hope you can help me further!? The problem: Vehicle runs only on 3 cylinders if it has a while or only for a short time. If I have driven a few KM then the error with the dropouts is away from the cylinder! Spark plugs and distributor cap and distributor fingers have already come new but the error is still there! Have also looked at the combustion image of the candles and they are Russian black! can the lying down? What is this mistake with this vehicle? Thank you very much for your help!