Fuel Injector Volume (ES300)
- Remove fuel injector. See FUEL SYSTEM under REMOVAL, OVERHAUL & INSTALLATION article. Fuel injector is connected to fuel filter for checking fuel injector volume. Remove fuel pipe clamp from No. 1 fuel pipe at fuel filter. Perform STEP 1. See Fig 1. Ensure area around No. 1 fuel pipe and fuel filter is clean. Depress both sides of retainer and pull No. 1 fuel pipe with disconnect fitting from fuel filter. Perform STEP 2. See Fig 1.
- Purchase a NEW No. 1 fuel pipe Part No. (23801-20060) from parts department. No. 1 fuel pipe is the fuel pipe that attaches to top of fuel filter. Remove fuel pipe connector from end of NEW No. 1 fuel pipe. See Fig 2.
- 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. Check that grommet and "O" ring are installed on top of fuel injector. Using clamp and union from fuel injector measuring kit, connect fuel injector to delivery hose. See Fig 2.
- 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) No. 3. See 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 fuel pump connector terminals. For operating of fuel pump, see FUEL PUMP OPERATION (USING BATTERY VOLTAGE) under FUEL DELIVERY.
- Connect Fuel Injector Tester (09842-30070) to fuel injector for 15 seconds. See Fig 3. 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.FUEL INJECTOR VOLUME SPECIFICATIONS
Application (1) Cu. In. (cc) Volume 3.7-4.5 (60-73) Difference Between Injectors 0.8 (13) (1) Specification listed is for a 15 second period. - 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 specification. Disconnect negative battery cable. Remove test equipment. Apply light coat of engine oil on tip of pipe on fuel filter to allow for ease of disconnect fitting and No. 1 fuel pipe installation.CAUTION: DO NOT reuse old retainer when installing No. 1 fuel pipe on fuel filter. Always use a NEW retainer.
- Using NEW retainer, install No. 1 fuel pipe on fuel filter until "click" sound is heard. DO NOT reuse old retainer. Pull on No. 1 fuel pipe to ensure fuel pipe connector is properly locked on fuel filter.
- Reinstall fuel pipe clamp until "click" sound is heard. Pull upward on fuel pipe clamp to ensure clamp is securely locked on fuel filter. Install negative battery cable. Check for fuel leaks by using scan tool to energize fuel pump.