XC90 2.5T AWD L5-2.5L Turbo VIN 59 B5254T2 (2003)
Connect the fuel drainage unit hose to the T-valve on the door mirror (pos. 3 in illustration).
Turn the T-valve cock to the middle position (position 2 in the illustration).
Start the evacuation unit to get suction in the measurement unit hose to the engine.
Tighten nipple on fuel rail.
Caution! Note! Check that there is no fuel leakage and that the evacuation unit is operating while the nipple is connected to the engine.