That I wanted to know if someone can help me I have a Ford Focus Gdi that sometimes it is difficult for him Pressure went up and stay above 400Psi also noticed that sometimes with the contact the pressure does not rise, but if the tank pump is heard, and when it goes up sometimes it does very slowly, I also wanted to consult, how is it that putting the vehicle in contact goes up the pressure above 400Psi? Not that the high pressure pump works with the engine on? Why does the tank pump have no more than 4Bar if I am not wrong, isn't it?
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