2003 Lexus ES 300FACTORY OEM SERVICE PROCEDURE

Fuel System: Inspection

  1. FUEL INJECTOR ASSYΒ 
    1. Inspect injector resistance
      1. Using an ohmmeter, measure the resistance between the terminals.
        1. Resistance: 13.4 - 14.2 Ξ© at 20Β°C (68Β°F)Β 

        If the resistance is not as specified, replace the injector.

    2. Inspect injector inspection
      CAUTION: Keep injector clear of sparks during the test.
      1. Purchase the new No. 1 fuel pipe and take out the fuel tube connector from its pipe.

        HINT:

        Part No. 23801 - 20150

        Fig 1: Locating Fuel Tube Connector
        G01328007Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
      2. Connect SST and fuel tube connector to the fuel pipe.
        1. SST 09268-41047 (95336-08070)
        CAUTION: Perform connecting operations of the fuel tube connector (quick type) after observing the precautions.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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