In conjunction with the Common Rail kit (JM No.: 6140868) you can use this set to bypass the pump regulator to diagnose problems with the regulator or pump.
After diagnosing low pump pressure, simply remove the regulator and select the correct adapter from the kit to bypass and seal the port.
If the pressure returns to normal after the test, the regulator is causing a loss of pressure.
However, if the pressure remains too low, the pump is faulty.
The test is recommended by the manufacturer of high pressure pumps.
The kit contains 8 different adapters to seal all regulator connections.