Fuel Injectors (Camry, RAV4 & Tercel)
- 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.
- To check fuel injector volume, remove fuel injector. See appropriate N - REMOVE/INSTALL/OVERHAUL article. Ensure area around fuel hose on top of fuel filter is clean. Remove union bolts with gaskets, and disconnect fuel hose from top of fuel filter.
- Install union, delivery hose, gaskets and union bolt on top of fuel filter. See Figure. Tighten union bolt to 22 ft. lbs. (30 N.m).
- Check that grommet and "O" ring are installed on top of fuel injector. Using clamp and union, connect fuel injector to the delivery hose.
- Place fuel injector into a clean graduated container. Place vinyl tube on end of fuel injector to prevent fuel spillage.
- Connect scan tool to Data Link Connector (DLC)-3. See Figure-Figure. Turn ignition on. Turn scan tool on. Select ACTIVE TEST MODE on scan tool. Using scan tool manufacturer's instructions, activate fuel pump.
NOTE:
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 FUEL PUMP RESISTANCE & OPERATION under FUEL DELIVERY.
- 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.
- Disconnect fuel injector tester. Ensure fuel leakage from end of fuel injector does not exceed one drop in specified time. See FUEL INJECTOR LEAKAGE SPECIFICATIONS table. Replace fuel injector if leakage exceeds specified amount. Disconnect negative battery cable. Remove test equipment.
- Using NEW gaskets, install fuel hose on top of fuel filter. Tighten union bolt to 22 ft. lbs. (30 N.m). Install negative battery cable. Check for fuel leaks by using scan tool to energize fuel pump.