On-Vehicle Inspection

CHECK FUEL PUMP OPERATION
1. Connect a TOYOTA hand-held tester to the DLC3.
2. Turn the ignition switch ON, and push the TOYOTA hand-held tester main switch ON.
  NOTE: Do not start the engine.
3. Select the ACTIVE TEST mode on the TOYOTA hand-held tester.
4. Please refer to the TOYOTA hand-held tester operator's manual for further details.
  
  Fig 1: Connecting Toyota Hand-Held Tester To DLC3
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Check that the pulsation damper screw rises up when the fuel pump operates.
  If operation is not as specified, check the fusible link, fuses, EFI main relay, fuel pump, ECM and wiring connections.
6. Turn the ignition switch OFF.
7. Disconnect the TOYOTA hand-held tester from the DLC3.
CHECK FUEL PRESSURE
1. Check the battery positive voltage is above 12 V.
2. Disconnect the negative (-) terminal cable from the battery.
3. Remove the front fuel pipe from the LH delivery pipe. (See REMOVAL )
  
  Fig 2: Checking Pulsation Damper
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Install the front fuel pipe and SST (pressure gauge) to the delivery pipe with 3 lower gaskets and SST (adaptor).
  SST 09268-45014 (09268-41190, 90405-06167)
  
  Torque: 39 N.m (400 kgf.cm, 29 ft.lbf)
5. Wipe off any splattered gasoline.
6. Reconnect the negative (-) terminal cable to the battery.
7. Connect a TOYOTA hand-held tester to the DLC3. (See steps (a) to (e) under 1
  
  Fig 3: Installing Pressure Gauge
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
8. Measure the fuel pressure.
  Fuel pressure: 265 - 304 kPa (2.7 - 3.1 kgf/cm ² , 38 - 44 psi)
  
  If pressure is high, replace the fuel pressure regulator.
  
  If pressure is low, check the fuel hoses and connections, fuel pump, fuel filter and fuel pressure regulator.
9. Disconnect the TOYOTA hand-held tester from the DLC3.
10. Start the engine.
11. Measure the fuel pressure at idle.
  Fuel pressure: 265 - 304 kPa (2.7 - 3.1 kgf/cm ² , 38 - 44 psi)
12. Stop the engine.
13. Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped.
  Fuel pressure: 147 kPa (1.5 kgf/cm ² , 21 psi) or more
  
  If pressure is not as specified, check the fuel pump, pressure regulator and/or injectors.
14. After checking fuel pressure, disconnect the negative (-) terminal cable from the battery and carefully remove the SST to prevent gasoline from splashing.
  SST 09268-45014
15. Reinstall the front fuel pipe to the LH delivery pipe. (See INSTALLATION )
16. Reconnect the negative (-) terminal cable to the battery.
17. Check for fuel leaks. (See PRECAUTION )