Fuel pressure measurement
WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Note the measurement value at this step. The result might be needed as a reference later.
Disconnect the vacuum hose from the pressure regulator.
NOTE:
Position the gauge so that the movement of the needle can be read when the engine is started.
Start the engine.
The pressure should rise to approximately 309 kPa (45psi) immediately.
If the pressure is correct, continue measuring the "Front pressure regulator" (5) or (6).
A: The pressure rises slowly to the correct pressure:
Switch off the engine.
Continue with " Check the rear fuel pressure" (8).
B: Too low or too high pressure.
Switch off the engine.
Continue with " Check the rear fuel pressure" (8).