Fuel Injector: Inspection

INSPECT INJECTOR INJECTION
CAUTION: Keep the injector clean of sparks during the test.
1. Disconnect the fuel inlet hose (fuel tube connector) from the fuel filter.
2. Connect SST (attachment and hose) to the fuel tube.
  SST 09268-41047 (09268-52011)
  
  Fig 1: Connecting SST To Fuel Tube
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the pressure regulator from the delivery pipe.
4. Install the O-ring to the fuel inlet of the pressure regulator.
5. Connect SST (hose) to the fuel inlet of the pressure regulator with SST (union) and the 2 bolts.
  
  Fig 2: Connecting SST To Fuel Inlet Of Pressure Regulator With SST & Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  SST 09268-41047 (09268-41091)
  
  Torque: 7.5 N*m (76 kgf*cm, 66 in.*lbf)
6. Connect the fuel return hose to the fuel outlet of the pressure regulator.
7. Install the O-ring to the injector.
8. Connect SST (adaptor and hose) to the injector, and hold the injector and union with SST (clamp).
  SST 09268-41047 (09268-41110, 09268-41300)
  
  Fig 3: Connecting SST (Adaptor & Hose) To Injector, & Hold Injector & Union With SST (Clamp)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
9. Put the injector into the graduated cylinder.
  CAUTION: Install a suitable vinyl hose onto the injector to prevent gasoline from splashing out.
10. Connect a intelligent tester to the Controller Area Network Vehicle Interface Module (CAN VIM). Then connect the CAN VIM to the Date Link Connector 3 (DLC3).
11. Connect the battery negative (-) cable to the battery.
12. Turn the ignition switch ON, and push the intelligent tester main switch ON.
  NOTE: Do not start the engine.
  
  Fig 4: Connecting A Intelligent Tester To Controller Area Network Vehicle Interface Module (CAN VIM)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
13. Enter the following menus: DIAGNOSIS / ENHANCED OBDII / ACTIVE TEST / FUEL PUMP / SPD
14. Please refer to the intelligent tester operator's manual for further details.
15. Connect SST (wire) to the injector and battery for 15 seconds, and measure the injection volume with a graduated cylinder. Test each injector 2 or 3 times.
  SST 09842-30070
  
  Volume:
  
  56 to 69 cm ³ (3.4 to 4.2 cu in.) per 15 seconds Difference between each injector:
  
  13 cm ³ (0.8 cu in.) or less
  
  If the injection volume is not as specified, replace the injector.
  
  Fig 5: Connecting SST (Wire) To Injector & Battery & Measure Injection Volume With A Graduated Cylinder
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT LEAKAGE
1. Under the above conditions, disconnect the tester probes of SST (wire) from the battery and check fuel leakage from the injector.
  SST 09842-30070
  
  Fuel drop:
  
  1 drop or less per 12 minutes
2. Turn the ignition switch off.
3. Disconnect the negative (-) terminal cable from the battery.
  
  Fig 6: Inspecting Fuel Leakage From Injector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Remove the SST and fuel tube connector.
  SST 09268-41047, 09842-30070
5. Disconnect the intelligent tester and CAN VIM from the DLC3.
6. Reconnect the fuel inlet pipe to the fuel tube.