Tundra 4WD V8-4.7L (2UZ-FE) (2003)
Torque: 39 N.m (400 kgf.cm, 29 ft.lbf)
e. Wipe off any splattered gasoline.
f.
Reconnect the negative (-) terminal cable to the battery.
g. Connect a hand-held tester to the DLC3 (See step 1 in check fuel pump operation (a) to (e)).
h. Measure the fuel pressure.
Fuel pressure: 265 - 304 kPa (2.7 - 3.1 kgf/sq.cm, 38 - 44 psi)
If pressure is high, replace the fuel pressure regulator. If pressure is low, check the fuel hoses and connections, fuel pump, fuel filter and fuel
pressure regulator.
i.
Disconnect the hand-held tester from the DLC3.
o. Start the engine.
k. Measure the fuel pressure at idle.
Fuel pressure: 265 - 304 kPa (2.7 - 3.1 kgf/sq.cm, 38 - 44 psi)
l.
Stop the engine.
m. 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.
n. After checking fuel pressure, disconnect the negative (-) terminal cable from the battery and carefully remove the SST to prevent gasoline from
splashing.
SST 09268-45014
o. Reinstall the front fuel pipe to the LH delivery pipe.
p. Reconnect the negative (-) terminal cable to the battery.
q. Check for fuel leaks.