Off Vehicle Inspection
1. INSPECT INJECTOR INJECTIONCAUTION: Keep injector clean of sparks during the test.
(a) Connect SST (union and hose) to the fuel filter outlet with the 2 gaskets and union bolt. SST 09268-41046 (90405-09015)
Torque: 29 N.m (300 kgf.cm, 22 ft.lbf)
(b) Remove the fuel pressure regulator.
(c) Install the O-ring to the fuel inlet of pressure regulator.
(d) Connect SST (hose) to the fuel inlet of the pressure regulator with SST (union). SST 09268-41046 (09268-41091)
Torque: 25 N.m (250 kgf.cm, 18 ft.lbf)
(e) Connect the fuel return hose to the fuel outlet of the pressure regulator.
(f) Install the grommet and O-ring to the injector.
(g) Connect SST (union and hose) to the injector, and hold the injector and union with SST (clamp). SST 09268-41046
(h) Put the injector into the graduated cylinder.
HINT: Install a suitable vinyl hose onto the injector to prevent gasoline from splashing out.
(i) Remove the fuse cover on the instrument panel.
(j) Connect the LEXUS hand-held tester to the DLC3.
(k) Turn the ignition switch ON and LEXUS hand-held tester main switch ON.
NOTICE: Do not start the engine.
(l) Select the active test mode on the LEXUS hand-held tester.
(m) Please refer to the LEXUS hand-held tester operator's manual for further details.
(n) If you have no LEXUS hand-held tester, connect the positive (+) and negative (-) leads from the battery to the fuel pump connector.
(o) Connect SST (wire) to the injector and battery for 15 seconds, and measure the injection volume with a graduated cylinder. Test each injector 2 or 3 times. SST 09842-30070
Volume: 69 - 88 cu.cm (4.2 - 5.4 cu in.) per 15 seconds
Difference between each injector:
5 cu.cm (0.3 Cu in.) or less
If the injection volume is not as specified, replace the injector.
2. INSPECT LEAKAGE
(a) In the condition above, disconnect the test probes of SST (wire) from the battery and check the fuel leakage from the injector. SST 09842-30070
Fuel drop: One drop or less per minute
(b) Turn the ignition switch OFF.
(c) Disconnect the negative (-) terminal cable from the battery.
(d) Remove SST. SST 09268-41045
(e) Reinstall the pressure regulator to the delivery pipe.
(f) Disconnect the LEXUS hand-held tester from the DLC3.
(g) Reinstall the fuse cover on the instrument panel.