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Fuel Injectors (Land Cruiser)

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Toyota Tundra, 2002 Toyota Tacoma, 2002 Toyota Sienna, 2002 Toyota Sequoia, and 2002 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove intake manifold cover located on top of engine. Remove air intake hose with intake air connector located between throttle body and air cleaner assembly. Ensure ignition is off.
  2. Disconnect electrical connector at fuel injector. Using ohmmeter, check resistance between electrical terminals on fuel injector. Replace fuel injector if resistance is not 13.4-14.2 ohms at 68°F (20°C). See FUEL RAILS & FUEL INJECTORS under FUEL SYSTEMS in REMOVAL, OVERHAUL & INSTALLATION - V6 & V8 article.
  3. To check fuel injector volume, remove fuel injector. See FUEL RAILS & FUEL INJECTORS under FUEL SYSTEMS in REMOVAL, OVERHAUL & INSTALLATION - V6 & V8 article. Fuel injector is connected to fuel filter and fuel pressure regulator for checking fuel injector volume.
  4. Ensure area around fuel filter and fuel inlet hose at end of fuel filter is clean. See Fig 1.
    Fig 1: Locating Fuel Filter & Disconnecting Fuel Inlet Hose From Fuel Filter (Land Cruiser)
    G98E11480Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. CAUTION: Use care when disconnecting fuel inlet hose from end of fuel filter, as some residual fuel pressure may still exist in the fuel system.
  5. Depress both sides of retainer and pull fuel inlet hose with disconnect fitting from fuel filter. See Fig 1.
  6. Purchase fuel inlet hose (part No. 23271-50150) from parts department. Remove fuel pipe connector from end of NEW fuel inlet hose. See Fig 2.
  7. Install delivery hose from Fuel Injector Measuring Kit (SST 09268-41047) with fuel pipe connector on fuel filter. See Fig 2. Ensure delivery hose and fuel pipe connector are properly connected on fuel filter.
    Fig 2: Identifying Fuel Pipe Connector & Connecting Fuel Injector Test Equipment (Land Cruiser)
    G98A11478Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. Remove fuel pressure regulator from fuel rail. See FUEL PRESSURE REGULATOR under FUEL SYSTEMS in REMOVAL, OVERHAUL & INSTALLATION - V6 & V8 article. Using NEW "O" ring, install Union (SST 09268-41091) from fuel injector measuring kit on fuel pressure regulator. See Fig 2. Tighten bolts to 66 INCH lbs. (7.5 N.m). Connect delivery hose to union and fuel return hose to fuel pressure regulator.
  9. Check that "O" ring is installed on top of fuel injector. Using Adapter (SST 09268-41110) and Clamp (SST 09268-41300) from fuel injector measuring kit, connect fuel injector to delivery hose. See Fig 2.
  10. Place vinyl tube on end of fuel injector to prevent fuel spillage. Place fuel injector into a clean graduated container.
  11. Connect Toyota hand-held tester to data link connector No. 3 at driver's side of instrument panel. See Figure. Turn ignition on and then turn hand-held tester on. Select ACTIVE TEST MODE on hand-held tester. Using hand-held tester manufacturer's instructions, activate fuel pump.
    NOTE: If hand-held tester is not available, fuel pump may also be operated to pressurize fuel system by applying battery voltage to electrical terminals on fuel pump. For operating of fuel pump, see appropriate FUEL PUMP RESISTANCE & OPERATION  procedure under FUEL DELIVERY under FUEL SYSTEMS.
  12. Connect Fuel Injector Tester (09842-30070) to fuel injector for 15 seconds. See Figure. Measure fuel injector volume. Test each fuel injector 2-3 times. Replace fuel injector if fuel injector volume is not within specification. See FUEL INJECTOR VOLUME SPECIFICATIONS  table. Ensure difference between fuel injector volume on all fuel injectors is within specification. See FUEL INJECTOR VOLUME SPECIFICATIONS  table.
  13. Disconnect fuel injector tester. Ensure fuel leakage from end of fuel injector does not exceed one drop within 12 minutes. Replace fuel injector if leakage exceeds one drop within 12 minutes. Disconnect negative battery cable. Remove test equipment.
  14. Apply light coat of engine oil on tip of pipe on fuel filter to allow for ease of disconnect fitting and fuel inlet hose installation.
    15. CAUTION: DO NOT reuse old retainer when installing fuel inlet hose on fuel filter. Always use a NEW retainer.
  15. Using NEW retainer, install fuel inlet hose on fuel filter until "click" sound is heard. DO NOT reuse the old retainer. Pull on fuel inlet hose to ensure fuel pipe connector is properly locked on the fuel filter.
  16. Using NEW "O" ring, install fuel pressure regulator. Tighten fuel pressure regulator bolts to 66 INCH lbs. (7.5 N.m). Install negative battery cable. Check for fuel leaks by operating the fuel pump by using hand-held tester or connecting battery voltage to fuel pump.
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