LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (Engine Controls - System & Component Testing - V6 & V8) >> Fuel Systems >> Fuel Control >> Fuel Injectors (Sequoia & Tundra 4.7L V8)

Fuel Injectors (Sequoia & Tundra 4.7L V8)

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 throttle body cover and air intake hose with intake air connector located between throttle body and air cleaner assembly. Ensure ignition is off. Disconnect electrical connector at fuel injector.
  2. 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 inlet pipe and fuel pressure regulator for checking fuel injector volume.
  4. Ensure area around fuel inlet hose and fuel inlet pipe is clean. Fuel inlet pipe is the pipe that goes up to the fuel inlet hose which connects on the fuel rail. Disconnect fuel inlet hose from fuel inlet pipe. Connect Adapter (SST 09268-52011) and delivery hose from Fuel Injector Measuring Kit (SST 09268-41047) to fuel inlet pipe. See Fig 1.
    Fig 1: Connecting Fuel Injector Test Equipment (Sequoia & Tundra 4.7L V8)
    G00009734Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. 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) on fuel pressure regulator. See Fig 1. Tighten bolts to 66 INCH lbs. (7.5 N.m). Connect delivery hose to union and fuel return hose on fuel pressure regulator.
  6. 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 the delivery hose. See Fig 1.
  7. Place vinyl tube on end of fuel injector to prevent fuel spillage. Place fuel injector into a clean graduated container.
  8. Connect Toyota hand-held tester to data link connector No. 3 at driver's side of instrument panel. See Figure and 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.
  9. 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.
  10. 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.
  11. 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 using hand-held tester to operate the fuel pump.
scientia non olet · About LEMON Manuals