Component Inspection

1. Inspect injector injection.

CAUTION: Keep injector clean of sparks during the test.





- 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)

- Remove the fuel pressure regulator.
- Install the O-ring to the fuel inlet of pressure regulator.





- 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)

- Connect the fuel return hose to the fuel outlet of the pressure regulator.





- Install the grommet and O-ring to the injector.
- Connect SST (union and hose) to the injector, and hold the injector and union with SST (clamp). SST 09268-41046
- Put the injector into the graduated cylinder.

HINT: Install a suitable vinyl hose onto the injector to prevent gasoline from splashing out.

- Remove the fuse cover on the instrument panel.





- Connect the LEXUS hand-held tester to the DCL3.
- Turn the ignition switch ON and LEXUS hand-held tester main switch ON.

NOTICE: Do not start the engine.

- Select the active test mode on the LEXUS hand-held tester.

Please refer to the LEXUS hand-held tester operator's manual for further details.





- If you have no LEXUS hand-held tester, connect the positive (+) and negative (-) leads from the battery to the fuel pump connector.

- 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 cub.cm (4.2 - 5.4 cu.in.)
per 15 seconds

Difference between each injector: 5 cub.cm
(0.3 cu.in.) or less

- If the injection volume is not as specified, replace the injector.





2. Inspect leakage.
- 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

- Turn the ignition switch OFF.
- Disconnect the negative (-) terminal cable from the battery.
- Remove SST. SST 09268-41045
- Reinstall the pressure regulator to the delivery pipe.

- Disconnect the LEXUS hand-held tester from the DCL3.
- Reinstall the fuse cover on the instrument panel.