Injection/Leakage Inspection

INSPECT INJECTOR

CAUTION: Keep injector clear of sparks during the test.




- Disconnect the fuel hose from the fuel filter outlet.




- Connect SST (union and hose) to the fuel filter outlet with the 2 gaskets and the union bolt.

SST 09268-41045 (90405-09015)

HINT: Use the vehicle's fuel filter.

- Remove the fuel pressure regulator.




- Connect the fuel return hose, SST (hose) and SST (union) to the fuel pressure regulator.

SST 09268-41045 (09268-41090)




- Install the 0-ring to the injector.
- Connect SST (union and hose) to the injector, and hold the injector and union with SST (clamp).

SST 09268-41045

- 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 DLC3.
- 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: 64 - 64 cm3 (3.3 - 3.9 Cu in.) per 15 sec.

Difference between each injector: 5 cm3 (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: 1 drop or less per minute.

- Disconnect the negative (-) terminal cable from the battery.
- Remove SST.

SST 09268-41045

- Reinstall the fuel pressure regulator to the delivery pipe.

Torque: 8 N.m (69 in lb)

- Turn the ignition switch to LOCK.
- Disconnect the LEXUS hand-held tester from the DLC3.
- Reinstall the fuse cover on the instrument panel.