Landcruiser AWD L6-4.5L (1FZ-FE) (1997)
Fuel Pressure: Testing and Inspection
FUEL PRESSURE TESTING
(a) Check the battery voltage is above 12 V.
(b) Disconnect the negative (-) terminal cable from the battery.
(c) Remove the union bolt and 2 gaskets and disconnect the fuel inlet pipe from the delivery pipe.
CAUTION:
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Put a shop towel under the delivery pipe.
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Slowly loosen the union bolt.
(d) Install the fuel inlet pipe and SST (pressure gauge) to the delivery pipe with the 3 gaskets and SST (union bolt). SST 09268-45012
Torque: 29 N.m (300 kgf.cm, 22 ft.lbf)
(e) Wipe off any splattered gasoline.
(f) Connect the TOYOTA hand-held tester to the DLC3.
(g) Reconnect the negative (-) terminal cable to the battery.
(h) Turn the ignition switch ON.
(i) Measure the fuel pressure.
Fuel pressure: 265 - 304 kPa
(2.7 - 3.1 kgf/cm2, 38 - 44 psi)
If pressure is high, replace the fuel pressure regulator. If pressure is low, check these parts:
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Fuel hoses and connections
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Fuel pump
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Fuel filter
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Fuel pressure regulator
(j) Remove the TOYOTA hand-held tester from the DLC3.
(k) Reinstall the fuse cover on the instrument panel.
(l) Start the engine.