Fuel System -- On-Vehicle Inspection |
1. CHECK FUEL PUMP OPERATION AND FOR FUEL LEAK |
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
- NOTICE:
- Do not start the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.
Check the fuel pump operation.
Check for pressure in the fuel inlet tube from the fuel line. Check that the sound of fuel flowing in the fuel tank can be heard.
If there is no sound, check the integration relay, fuel pump, ECM and wiring connector.
Inspect for fuel leaks (Click here).
2. CHECK FUEL PRESSURE |
Check the battery voltage (Click here).
Discharge the fuel system pressure (Click here).
Disconnect the cable from the negative (-) battery terminal.
- NOTICE:
- After turning the engine switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work (Click here).
- When disconnecting the cable, some systems need to be initialized after the cable is reconnected (Click here).
Remove the fuel pipe clamp.
![]() |
Disconnect the fuel tube (Click here).
Install SST (pressure gauge) as shown in the illustration.
- SST
- 09268-45101(09268-41250,09268-41260,09268-41280,09268-41500,95336-08070)
Text in Illustration *1 SST (T Joint) *2 SST (Hose Band) *3 SST (Hose Joint) *4 SST (Gauge Assembly) *5 Fuel Tube *6 SST (Fuel Tube Connector)
![]() |
Wipe off any gasoline.
Reconnect the cable to the negative (-) battery terminal.
Operate the fuel pump.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
- NOTICE:
- Do not start the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.
Measure the fuel pressure.
- Standard fuel pressure:
- 321 to 327 kPa (3.27 to 3.33 kgf/cm2, 46.5 to 47.4 psi)
If the pressure is below the specification, check the fuel hoses and connections, fuel pump, fuel filter and fuel pressure regulator.
Start the engine.
Measure the fuel pressure.
- Standard fuel pressure:
- 321 to 327 kPa (3.27 to 3.33 kgf/cm2, 46.5 to 47.4 psi)
Stop the engine.
Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped.
- Standard fuel pressure:
- 147 kPa (1.5 kgf/cm2, 21 psi) or higher
After checking the fuel pressure, disconnect the cable from the negative (-) battery terminal and carefully remove SST and the fuel tube connector to prevent gasoline from spraying.
Connect the fuel tube (Click here).
Install the fuel pipe clamp.
Inspect for fuel leaks (Click here).