On-Vehicle Inspection

CHECK FUEL PRESSURE
1. Discharge the fuel pressure system and take precautions against possible fuel spillage. (See PRECAUTION )
2. Check the battery voltage is above 12 V.
3. Disconnect the negative (-) battery cable.
4. Pull out of the connector from a new fuel tube.
  HINT:
  
  Part No. 23901-22130
  
  Fig 1: Pulling Out Of Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Disconnect the fuel tube clamp from the fuel tube connector.
  
  Fig 2: Disconnecting Fuel Tube Clamp
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Disconnect the fuel tube connector from the fuel pipe by pinching part A with your fingers as shown in Fig 3.
  
  Fig 3: Disconnecting Fuel Tube Connector From Fuel Pipe Pinching Part A
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  CAUTION:
  - Do not disconnect any fuel connectors until discharging the fuel system pressure and taking appropriate steps to prevent fuel spillage.
  - There may be retained pressure in the fuel lines even after discharging the pressure. Take precautions to prevent fuel spray on you or inside the engine compartment.
7. Install SST (pressure gauge) and the fuel tube connector as shown in Fig 4 using SST.
  SST 09268-41047 (95336-08070), 09268-45014 (09268-41250, 09268-41200, 09268-41220)
  
  Fig 4: Installing SST (Pressure Gauge) And Fuel Tube Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
8. Wipe up any gasoline.
9. Reconnect the negative (-) battery cable.
10. Connect the hand-held tester to the DLC3.
11. Measure the fuel pressure.
  Fuel pressure: 304 to 343 kPa (3.1 to 3.5 kgf/cm ² , 44 to 50 psi)
  
  If the pressure is high, replace the fuel pressure regulator.
  
  If the pressure is low, check the fuel hoses connections, fuel pump, fuel filter and fuel pressure regulator.
12. Disconnect the hand-held tester from the DLC3.
13. Start the engine.
14. Measure the fuel pressure at idle.
  Fuel pressure: 304 to 343 kPa (3.1 to 3.5 kgf/cm ² , 44 to 50 psi)
15. Stop the engine.
16. Check that the fuel pressure remains as specified for 5 minutes after the engine stopped.
  Fuel pressure: 147 kPa (1.5 kgf/cm ² , 21 psi)
  
  HINT:
  
  If the pressure is not as specified, check the fuel pump, pressure regulator and/or injectors.
17. After checking the fuel pressure, disconnect the negative (-) battery cable and carefully remove SST and the fuel tube connector to prevent gasoline splashes.
18. Reconnect the fuel inlet tube (fuel tube connector).
CAUTION: After taking the precautions, connect the fuel tube connector (quick type).
CHECK FUEL PUMP OPERATION AND CHECK FOR FUEL LEAKS
1. When using the hand-held tester.
  1. Connect the hand-held tester to the DLC3.
  2. Turn the ignition switch ON and hand-held tester main switch ON.
    NOTE: Do not start the engine.
  3. Select the ACTIVE TEST mode on the hand-held tester.
  4. Please refer to the Hand-Held Tester Operator's Manual for further details.
2. When not using the hand-held tester.
  1. Remove the circuit opening relay.
  2. Using a service wire, connect terminals FP and +B of the relay block.
    
    Fig 5: Connecting Terminals FP And +B Of Relay Block
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    NOTE: Pay due attention to the terminal connecting position to avoid malfunctions.
  3. Turn the ignition switch ON, and check that the fuel pump operates.
  NOTE: Do not start the engine.
3. Check that there are no fuel leaks after doing maintenance to the fuel system.
4. Turn the ignition switch OFF.
5. Disconnect the hand-held tester from the DLC3.