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Fuel Injectors (Camry)

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Toyota Tacoma, 2002 Toyota RAV4, 2002 Toyota Prius, 2002 Toyota MR2, and 2002 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. To check for fuel injector operation, using stethoscope, listen for clicking sound at each fuel injector, or feel for fuel injector operation at fuel injector with engine cranking or with engine running. If fuel injector operation does not exist, check for loose connection at electrical connector for fuel injector. If electrical connector for fuel injector is okay, go to next step.
  2. Ensure ignition is off. Disconnect electrical connector at fuel injector. Using ohmmeter, check resistance between electrical terminals on fuel injector. Replace fuel injector if resistance is not within specification. See FUEL INJECTOR RESISTANCE  table. See FUEL RAILS & FUEL INJECTORS under FUEL SYSTEMS in REMOVAL, OVERHAUL & INSTALLATION - 4-CYLINDER article.
  3. If fuel injector operates and fuel injector resistance is within specification, go to next step. If fuel injector resistance is within specification but fuel injector does not operate, check wiring circuit to fuel injector. See WIRING DIAGRAMS article. If problem exists in fuel injector or wiring circuit and misfire exists, a Diagnostic Trouble Code (DTC) may be stored in Engine Control Module (ECM). See TESTING PROCEDURE under SELF-DIAGNOSTIC SYSTEM in appropriate SELF-DIAGNOSTICS article for retrieving of DTCs.
  4. To check fuel injector volume, remove fuel injector. See FUEL RAILS & FUEL INJECTORS under FUEL SYSTEMS in REMOVAL, OVERHAUL & INSTALLATION - 4-CYLINDER article.
  5. Remove fuel pipe clamp from end of fuel pipe at fuel pipe fitting if not previously done. See Fig 1. Ensure area around fuel pipe and disconnect fitting is clean.
  6. Depress both tabs and pull fuel pipe with disconnect fitting from fuel pipe fitting. See Fig 1. Use care when disconnecting fuel pipe, as some residual fuel pressure may still exist in fuel system.
  7. Purchase fuel pipe (part No. 23901-28130) from parts department. Remove fuel pipe connector from end of NEW fuel pipe. See Fig 2.
  8. Install fuel pipe connector on fuel pipe fitting. See Fig 3. Ensure fuel pipe connector is securely attached on fuel pipe fitting is fully seated.
  9. Connect delivery hose from Fuel Injector Measuring Set (SST 09268-41047) to fuel pipe connector. Check that "O" ring is installed on top of fuel injector. Using clamp and union from fuel injector measuring set, connect fuel injector to delivery hose. See Fig 3.
  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 removing circuit opening relay from fuse/relay box and installing jumper wire between FP and +B terminals in fuse/relay box for circuit opening relay and then turning ignition on. See Fig 4. Fuse/relay box is located at driver's side front corner of engine compartment.
  12. Connect Fuel Injector Tester (09842-30080) to fuel injector for 15 seconds. See Fig 5. 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 in 12 minutes. Replace fuel injector if leakage exceeds one drop in 12 minutes. Disconnect negative battery cable. Remove test equipment.
  14. Install fuel pipe on fuel pipe fitting. Pull on fuel pipe to ensure fuel pipe is properly locked on fuel pipe fitting. Reinstall fuel pipe clamp. 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.
    NOTE: It may be possible that power sun roof may not operate properly after battery was disconnected. If power sun roof does not operate properly, perform power sun roof reinitialization procedure. See appropriate POWER SUN ROOF REINITIALIZATION PROCEDURE  under PROGRAMMING.
    Fig 1: Locating Fuel Pipe Clamp & Disconnecting Fuel Pipe From Fuel Pipe Fitting (Camry)
    G00023074Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Identifying Fuel Pipe Connector (Camry, ECHO, Highlander, Prius & RAV4)
    G99C52375Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 3: Connections For Testing Typical Fuel Injector (Camry, Celica, Corolla, ECHO, Highlander, MR2, Prius & RAV4)
    G00025335Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 4: Locating Circuit Opening Relay & Identifying FP & +B Cavities For Circuit Opening Relay (Camry)
    G00025389Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 5: Connecting Fuel Injector Tester
    G95J33687Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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