Test pressurization of the fuel tank system

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Ignition Switch OFF Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

Max 50 liters of fuel in the fuel tank.
Ignition off.
Clamp hose between canister purge (CP) valve and intake manifold with a hose clip to seal it off.
Remove left fender liner according to Removing fender liner .
Remove EVAP canister and let it hang by its hoses.
Carefully disconnect the EVAP canister shut-off valve hose from the EVAP canister.
Connect tool 9995646 to EVAP canister.
Set a pressure of 7 kPa.
WARNING:
MAX 10 kPa.
Let the pressure build up for 5 minutes.
Close the cock (pressure may drop to 1-2 kPa before stabilizing) and read off pressure.
- Wait for 10 minutes.
  WARNING:
  Never leave the car unattended with its system pressurized.
- The pressure should be stable (it may rise a little due to fuel evaporation).

Is the pressure stable?

YES
Refer to Checking hose to EVAP canister shut-off valve
NO
Refer to Checking fuel tank system