Diesel Data: Automotive Repair

Fuel Pressure Control Solenoid: Testing and Inspection






COMPONENTS FOR REMOVAL AND INSTALLATION

VACUUM SWITCHING VALVE (VSV) FOR FUEL PRESSURE CONTROL INSPECTION

1. REMOVE V-BANK COVER
2. REMOVE VSV
(a) Disconnect the VSV connector.
(b) Disconnect these hoses from the VSV:
- Vacuum hose from fuel pressure regulator
- Vacuum hose from air intake chamber
(c) Remove the bolt and VSV.
3. INSPECT VSV





A. Inspect VSV for open circuit
Using an ohmmeter, check that there is continuity between the terminals.

Resistance: 37 - 44 Ohm at 20°C (68°F):

If there is no continuity, replace the VSV.





B. Inspect VSV for ground
Using an ohmmeter, check that there is no continuity between each terminal and the body.
If there is continuity, replace the VSV.





C. Inspect VSV operation
(a) Check that air flows from ports E to G.





(b) Apply battery voltage across the terminals.
(c) Check that air flows from port E to the filter.
If operation is not as specified, replace the VSV.
4. REINSTALL VSV
(a) Install the VSV with the bolt.

Torque: 18 N.m (185 kgf.cm, 13 ft.lbf)

(b) Connect these hoses to the VSV:
- Vacuum hose from fuel pressure regulator
- Vacuum hose from air intake chamber
(c) Connect the VSV connector.
5. REINSTALL V-BANK COVER