Measuring line pressure

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 Fuel Pump (FP) Relay Base Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Connect pressure gauge according to Connecting fuel pressure gauge .
Remove central electrical unit cover
Remove fuel pump (FP) relay (terminal 103 in central electrical unit)
Connect jumper cable across relay base terminals 1 and 3
Switch on ignition, fuel pump should start
Read off line pressure from pressure gauge. The line pressure should be 375-395 kPa

If the fuel pressure is OK, check the residual pressure.

Remedy as necessary

Other information
- For location of and to replace the pressure regulator, see Replacing fuel pressure regulator .
- For the location of and to replace the fuel pump (FP) relay, see Replacing relay in engine compartment central electrical unit .
- For the location of and to replace the fuel pump (FP), see Fuel pump, replacement .
- For the location of and to replace the fuel filter, see Fuel filter, replacement .
- To disconnect the pressure gauge, see Disconnecting fuel pressure gauge .
Fig 2: Identifying Pressure Gauge
Courtesy of VOLVO CARS OF NORTH AMERICA.

Should the residual pressure be checked?

YES
Refer to Checking residual pressure
NO
OKAY: Troubleshooting has been completed.