Pressure Regulator Vacuum Relief (PRVR) Control Solenoid Test (300ZX)
- To test solenoid, disconnect vacuum lines and electrical connector from solenoid. Remove solenoid. Apply vacuum to port "B" of solenoid. See Figure . Vacuum should now be available at port "C", but not at port "A".
- Apply battery voltage across solenoid connector terminals. Vacuum should now be available at port "A", but not at port "C". Replace solenoid if it does not operate as specified.