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 injector injection.

CAUTION:

1. This test involves high-pressure fuel and electricity.
   
2. Take every precaution regarding safe handling of both the fuel and the electrical parts.
   
3. Perform this test in a safe area and avoid any sparks or flame.
   
4. Do not smoke.
   

1. Assemble SST as shown in the illustration.
   

   SST

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

   Text in Illustration

   *1	SST (Hose Band)
   *2	SST (Hose)
   *3	SST (3 Way)
   *4	SST (Union)
   *5	SST (Fuel Tube Connector)

2. Discharge the fuel system pressure (HILUX_TGN26 RM000000YL401PX.html).
   

3. Disconnect the fuel inlet hose (fuel tube connector) from the fuel filter.
   

4. Remove the bolt and disconnect the fuel pressure regulator from the fuel delivery pipe.
   

   NOTICE:

   Do not disconnect the fuel hose No. 2 from the fuel pressure regulator.





5. Connect SST to the fuel filter.
   

   SST

   09268-31014(09268-41500)
   

   Text in Illustration

   *1	SST (Fuel Tube Connector)
   *2	Fuel Filter

   CAUTION:

   Always read the precautions before connecting the fuel tube connector.





6. Connect SST (hose) to the fuel inlet of the fuel pressure regulator with another SST (union) and the 2 bolts.
   

   Torque:

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

   Text in Illustration

   *1	SST (Hose)
   *2	SST (Hose Band)
   *3	SST (Union)
   *4	Fuel Pressure Regulator
   *5	Fuel Return Hose

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

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





9. Connect SST (adapter and hose) to the fuel injector and hold the fuel injector and adapter with SST (clamp).
   

   SST

   09268-31014(09268-41141,09268-41410,09268-41700,95336-08070)
   

   Text in Illustration

   *1	SST (Hose Band)
   *2	SST (Hose)
   *3	SST (Adapter)
   *4	SST (Clamp)
   *5	Vinyl Tube





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

    *1	SST (Tie Band)
    *a	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. Install a vinyl tube to the injector.
    

    CAUTION:

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

13. Put the fuel injector into a graduated cylinder.
    

    HINT:

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

14. Operate the fuel pump.
    





15. Connect SST (wire) to the fuel injector 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:

    76 to 91 cm³ (4.6 to 5.5 cu in.) per 15 seconds
    

    Difference between each fuel injector:

    15 cm³ (0.9 cu in.) or less
    

    Text in Illustration

    *1	SST (Wire)
    	Connect

    NOTICE:

    1. Make sure that SST (EFI inspection wire H) is securely connected.
       
    2. Always turn the voltage on and off on the battery side, not the fuel pump side.
       
    If the result is not as specified, replace the fuel injector assembly.
    

Check for fuel leakage.

1. In the condition above, disconnect the test probes of SST (wire) from the battery and check the rate of fuel leakage from the fuel injector.
   

   Standard fuel leakage:

   1 drop or less per 12 minutes
   

   If the fuel leakage is not as specified, replace the fuel injector assembly.