I'm checking the pressure regulator (PRD) on the fuel rail to see if it's relieving pressure from the rail. It's also necessary to check the pressure in the fuel rail. If the pressure is normal during operation, but immediately drops when the engine is turned off, the problem is most likely the check valve in the pump.
How to check the pressure in the fuel rail: • Двигатель плохо запускается.Причина может ...