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Hello, this is Ariel. The above episode tells how to perform the most common and at the same time basic verification of the problem concerning the problem with unit injectors. Unit injectors are an injection system used in passenger cars in the VW group. Its advantage compared to the first generation common rail systems is probably fuel economy, while injection systems based on unit injectors also have their drawbacks, more precisely, among others, loud and hard engine operation. Very often, the problem with unit injectors begins with the increasingly difficult starting of the engine. This problem is worsened when the engine in the car is warmed up. Such a situation was in this particular case - after warming up the engine, it was impossible to start it. The above episode presents the basic diagnosis of unit injector systems and verification of probably the most common fault today that can be found in the injection system of unit injectors. Pump injectors as a fuel system in passenger cars are found in the Volkswagen group, but in delivery vehicles and trucks it is a fuel system that is much more popular. Injection systems based on pump injectors are emergency systems, like any fuel system in vehicles. Today, the hybrid system is not an exception, but we will talk about that in another episode. The episode contains a lot of substantive information and I hope that it will be interesting not only for owners of cars from the VW group but also for other motoring enthusiasts. Maybe I will not discuss injection systems anymore, but I would like to invite you to watch the episode below. I wish you a pleasant viewing.