Fuel Injector Inspection

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 - 2	20°C (68°F)	11.6 to 12.4 Ω

Check the injection volume.

CAUTION:

This test involves high-pressure fuel and electricity, therefore, safety precautions should be taken. Perform this test in a safe area and avoid any sparks and flames. Do not smoke.

1. Discharge the fuel system pressure (LandCruiser RM0000028RU05IX.html).
   

2. Remove the fuel hose from the fuel pressure pulsation damper assembly (LandCruiser RM000000UK107SX.html).
   

3. Remove the fuel hose from the fuel filter assembly (LandCruiser RM0000044IQ012X.html).
   

4. Disconnect the fuel pressure regulator (LandCruiser RM0000015ZM00RX.html).
   

   NOTICE:

   Do not disconnect the No. 2 fuel hose.





5. Assemble SST as shown in the illustration.
   

   SST

   09268-31014(09268-41091,09268-41110,09268-41120,09268-41310,09268-41500,09268-41700,95336-08070)
   

   Text in Illustration

   *1	Fuel Pressure Regulator
   *2	Fuel Injector Assembly
   *3	Fuel Filter Assembly
   *a	SST (Union)
   *b	SST (Hose Band)
   *c	SST (Fuel Tube Connector)
   *d	SST (3 Way)
   *e	SST (Hose)
   *f	SST (Adapter)
   *g	SST (Clamp)





6. Connect SST to the fuel filter assembly.
   

   SST

   09268-31014(09268-41500)
   

   Text in Illustration

   *1	Fuel Filter Assembly
   *a	SST (Fuel Tube Connector)





7. Install the fuel pressure regulator to SST (union) with the 2 bolts.
   

   SST

   09268-31014(09268-41091,09268-41700,95336-08070)
   

   Torque:

   9.0 N*m{92 kgf*cm, 80 in.*lbf}

   Text in Illustration

   *1	Fuel Pressure Regulator
   *a	SST (Hose Band)
   *b	SST (Union)
   *c	SST (Hose)

   NOTICE:

   Make sure that the O-ring is installed to the pressure regulator.

8. Install the O-ring to the fuel injector assembly.
   





9. Assemble SST as shown in the illustration.
   

   SST

   09268-31014(09268-41110,09268-41310,09268-41700,95336-08070)
   

   Text in Illustration

   *a	Vinyl Tube
   *b	SST (Clamp)
   *c	SST (Hose)
   *d	SST (Hose Band)
   *e	SST (Adaptor)





10. Pass SST (tie band) through the loop on the handle of SST (clamp) to secure SST (clamp) to SST (adapter).
    

    SST

    09268-31014(09268-41800)
    

    Text in Illustration

    *a	SST (Tie Band)
    *b	Lock

    NOTICE:

    1. As SST (tie band) does not completely prevent SST (clamp) from becoming loose, do not subject the parts to any impacts while using them.
       
    2. Before using SST (tie band), make sure that there is no deterioration, damage or cracks. If there are any abnormalities, replace SST.
       

    HINT:

    When removing SST (tie band), disengage the lock.

11. Check that SST (clamp) and SST (adapter) cannot be easily separated.
    

12. Put the fuel injector assembly into a graduated cylinder.
    

    CAUTION:

    Install a suitable vinyl tube to the fuel injector assembly to contain any gasoline spray.

13. Operate the fuel pump (LandCruiser RM000000Q3M06EX_01_0001.html).
    





14. Connect SST (EFI inspection wire H) to the fuel injector assembly and the battery for 15 seconds and measure the injection volume with a graduated cylinder. Test each injector 2 or 3 times.
    

    SST

    09842-30080
    

    Standard injection volume:

    82 to 99 cm³ (5.0 to 6.0 cu in.) per 15 seconds
    

    Difference between each injector:

    17 cm³ (1.0 cu in.) or less
    

    Text in Illustration

    *a	SST (EFI inspection wire H)
    	Connect

    NOTICE:

    1. Make sure that SST (EFI inspection wire H) is securely connected.
       
    2. Always do the switching at the battery side.
       
    If the injection volume is not as specified, replace the fuel injector assembly.
    

Check the leakage.

1. In the condition above, disconnect the tester probes of SST (EFI inspection wire H) from the battery and check the fuel leakage from the fuel injector assembly.
   

   Fuel leakage:

   1 drop or less in 25 minutes