Tacoma Extra Cab 2WD V6-3.4L (5VZ-FE) (1998)
(n) Disconnect the vacuum sensing hose from the fuel pressure regulator and plug the hose end.
(o) Measure the fuel pressure at idle.
Fuel pressure:
265 - 304 kPa (2.7 - 3.1 kgf/sq.cm, 38 - 44 psi)
(p) Stop the engine.
(q) Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped.
Fuel pressure:
147 kPa (1.5 kgf/sq.cm, 21 psi) or more
If pressure is not as specified, check the fuel pump, pressure regulator and/or injectors.
(r) After checking fuel pressure, disconnect the negative (-) terminal cable from the battery and carefully remove the SST to prevent gasoline from
splashing.
SST 0926-45012
(s) Remove the other union bolt, 3 gaskets and fuel pipe from the delivery pipes.
(t) Reinstall the fuel pipe with 4 new gaskets and the 2 union bolts.
Torque:34.3 N.m (350 kgf.cm, 25 ft.lbf)
(u) Reconnect the negative (-) terminal cable to the battery.
(v) Check for fuel leakage.