200SX L4-2187cc 2.2L SOHC (Z22E) (1982)
Vacuum/fuel Pressure Test
4. Start engine and check for fuel leakage.
5. Read the indication of fuel pressure gauge.
Expected Fuel Pressure
At Idle ........................................................................................................................................... Approximately. 206 kPa (2.1 kg/sq cm, 30 psi)
At Wide Open Throttle (WOT) ........................................................................................................................................ Approximately. 255 kPa
(2.6 kg/sq cm, 37 psi)
6. Stop engine and disconnect fuel pressure regulator vacuum hose from intake collector.
7. Plug intake collector with a rubber cap.
8. Connect variable vacuum source, Fig. 3, to pressure regulator.
Fig. 4 Vacuum/Fuel pressure relationship chart.
9. Start engine and read the indication of fuel pressure gauge as vacuum is changed Fig. 4.