DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Fuel System (A25A-FXS) - Service Information (1 Of 2)) >> FUEL INJECTOR (for Port Injection) >> Inspection [12/2019 - ] >> Procedure

Inspection [12/2019 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. INSPECT PORT FUEL INJECTOR ASSEMBLY 
    1. Check the resistance.
      1. 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

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

        GTY767558Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (Port Fuel Injector Assembly)
    2. Check the operation.
      WARNING:

      Perform the inspection in a well-ventilated area.

      Do not perform the inspection near an open flame.

      1. Open the cover of the EFI fuel pipe clamp and remove the EFI fuel pipe clamp from the fuel tube connector.
        GTY924734Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        Open
        Pull
      2. Disconnect the fuel tube sub-assembly.
        GTY935527Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Refer to PRECAUTION [12/2019 - 11/2023] , or refer to PRECAUTION [11/2023 - ]

      3. Connect SST (fuel tube connector) to SST (hose) with SST (hose band), and then connect them to the fuel pipe (vehicle side).
        GTY453609Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a SST (Hose)
        *b SST (Hose Band)
        *c SST (Fuel Tube Connector)
        *d Fuel Pipe (Vehicle Side)
        • SST: 09268-31015 
          1. 09268-41500
          2. 09268-41700
          3. 95336-08070
        NOTE:

        Make sure the SST (fuel tube connector) O-rings are not damaged and are free of foreign matter as they are used to seal the connections between the fuel tube connector and fuel pipe.

      4. Apply a light coat of gasoline to a new O-ring, and then install the O-ring to the port fuel injector assembly.
      5. Connect SST (adapter) and SST (hose) to the port fuel injector assembly, and hold the port fuel injector assembly and union with SST (clamp).
        GTY677103Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *1 O-ring
        *a SST (Adapter)
        *b SST (Hose Band)
        *c SST (Clamp)
        *d SST (Hose)
        *e Vinyl Tube
        • SST: 09268-31015 
          1. 09268-41410
          2. 09268-41600
          3. 09268-41700
          4. 95336-08070
      6. Install a vinyl tube to the port fuel injector assembly.
        WARNING:

        Install a suitable vinyl tube to the port fuel injector assembly to prevent fuel from spraying.

      7. Tie SST (clamp) and SST (adapter) together with SST (tie band) as shown in the illustration.
        GTY860222Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Lock
        *b SST (Tie Band)
        *c SST (Adapter)
        *d SST (Clamp)
        • SST: 09268-31015 
          1. 09268-41800
        NOTE:
        • As SST (tie band) does not completely prevent SST (clamp) from becoming loose, do not subject the parts to any impacts while using them.
        • Before using SST (tie band), make sure that there is no wear, damage or cracks. If there are any abnormalities, replace SST (tie band).

        HINT: 

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

      8. Check that SST (clamp) and SST (adapter) cannot be easily separated.
      9. Set the port fuel injector assembly into a graduated cylinder.
        NOTE:

        Do not start the engine.

        Powertrain > Engine > Active Test 

        Tester Display
        Activate the Circuit Relay
      10. Connect SST (EFI inspection wire K) to the port fuel injector assembly and auxiliary battery for 15 seconds, and measure the injection volume with the graduated cylinder. Test each port fuel injector assembly 2 or 3 times.
        GTY508352Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a SST (EFI Inspection Wire K)
        • SST: 09842-30110 

        Standard Injection Volume

        Auxiliary Battery Connection Condition Specified Condition
        Positive (+) auxiliary battery terminal - Negative (-) auxiliary battery terminal Per 15 seconds 67 to 81 cc (4.1 to 4.9 cu.in.)

        Difference between Each Port Fuel Injector Assembly

        14 cc (0.9 cu.in.) or less

        NOTE:
        • Make sure that SST (EFI inspection wire K) is securely connected.
        • Always switch the voltage on and off at the auxiliary battery side, not the port fuel injector assembly side.

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

    3. Check for leaks.
      1. Disconnect SST (EFI inspection wire K) from the auxiliary battery and check for fuel leaks from the port fuel injector assembly.

        Standard Fuel Drop

        1 drop or less per 20 minutes

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

      2. Connect the fuel tube sub-assembly.

        Refer to PRECAUTION [12/2019 - 11/2023] , or refer to PRECAUTION [11/2023 - ]

      3. Install the EFI fuel pipe clamp to the fuel tube connector and close the cover of the EFI fuel pipe clamp.
Diesel-Data.com