Pulsar L4-1809cc 1.8L DOHC (CA18DE) (1988)
Pressure Regulator Vacuum Relief (PRVR) Solenoid: Description and Operation
1986-88 300ZX, 1987-88 Pulsar Exc. E16i Engine, Maxima, Stanza, Stanza Wagon & 200SX
This system improves engine starting in hot condition by cutting off intake manifold vacuum and increasing fuel pressure by the use of a pressure
regulator control solenoid valve.