V40 L4-1.9L Turbo VIN 25 B4204T2 (2000)
The pressure reading should go down.
Fuel pressure must not be lowered below 240 kpa.
Release the vacuum.
The pressure should rise to approximately 309 kPa immediately.
Pump up the pressure.
The pressure reading should go up.
Fuel pressure must not be raised above 380 kPa
Release the pressure.
The pressure should return to approximately 309 kPa immediately.
Continue with "Check the residual pressure"(7). If the pressure regulator is not functioning correctly, replace the front pressure regulator.
Checking the residual pressure:
The starting pressure is 309 kPa
Switch off the engine.
Note the time.
The fuel pressure must not be lower than 200 kPa for 20 minutes.
Hint: Too low residual pressure can be caused by leakage in the injectors, the check valve in the fuel pump or leakage in the pressure regulators.
Remove the test equipment from the car. Return the equipment to the tool board.
Reinstall the removed components and the cap on the Schrader valve.
Note! The rear fuel pressure measurement test must only be carried out if the result of step 4 is in accordance with A or B.
Raise the car.
