Measuring the 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.
- Connect the pressure gauge according to Connecting Fuel Pressure Gauge
- HINT: If the engines starts, do not override the fuel pump (FP). Continue if this is the case, with: "Read off the line pressure from the pressure gauge".
- Remove the cover from the integrated relay/fusebox in the engine compartment at the firewall
- Remove the fuel pump (FP) relay (103 (terminal 2/23))
- Connect a cable (as illustrated on the relay base) between terminals 15 and 87
- Turn the ignition key to position II.
Read off the line pressure from the pressure gauge.
The system pressure must be:
- B5254S DENSO 1999: 300 1 kPa
- other engines with Fenix 5.2: 300 kPa.
Check the residual pressure if the fuel pressure is OK.
Remedy as necessary.
Other information:
- For the location of and to replace the fuel pump (FP) relay (103), see fusebox illustration in Location Of Components
- 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 .