2NZ-FE FUEL FUEL SYSTEM ON-VEHICLE INSPECTION

PROCEDURE

Hide Display 1.CHECK FUEL PUMP WITH FILTER ASSEMBLY OPERATION AND INSPECT FOR FUEL LEAK

Check fuel pump with filter assembly operation.

Connect the GTS to the DLC3.

ii.

Turn the ignition switch to ON and turn the GTS on.

NOTICE:: Do not start the engine.

iii.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

Powertrain > Engine and ECT > Active Test

Tester Display
Control the Fuel Pump / Speed

50004 234 5

iv.

Check for pressure in the fuel tube sub-assembly from the fuel line. Check that sounds of fuel flowing from the fuel tank sub-assembly can be heard. If no sound can be heard, check the fuel pump with filter assembly, ECM and wiring connectors.

Inspect for fuel leaks.

Check that there are no fuel leaks from the fuel system after doing any maintenance or repairs. If there is a fuel leak, repair or replace parts as necessary.

Turn the ignition switch off.

Disconnect the GTS from the DLC3.

Hide Display 2.CHECK FUEL PRESSURE

Discharge the fuel system pressure.

Click hereEngine / Hybrid System>2NZ-FE FUEL>FUEL SYSTEM>PRECAUTION

Measure the battery voltage.

Standard Voltage:: 11 to 14 V

Disconnect the cable from the negative (-) battery terminal.

NOTICE:: When disconnecting the cable, some systems need to be initialized after the cable is reconnected.; Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>INITIALIZATION

Remove the No. 1 fuel pipe clamp. (for Vehicle Body Side)

Click hereEngine / Hybrid System>2NZ-FE FUEL>FUEL SYSTEM>PRECAUTION

Disconnect the fuel tube sub-assembly from the fuel pipe.

Click hereEngine / Hybrid System>2NZ-FE FUEL>FUEL SYSTEM>PRECAUTION

0.583,1.417 0.75,1 0.75,1 0.917,1 false 1.583,2.417 1.75,2.417 1.75,2.417 2,2.021 false 2.417,0.5 2.583,0.5 2.583,0.5 2.813,0.344 false 2.25,1.083 2.417,1.083 2.417,1.083 2.667,0.927 false 2.333,1.417 2.5,1.417 2.5,1.417 2.729,1.521 false 2.635,2.917 2.917,2.667 2.917,2.667 3.083,2.667 false 0.667,3.333 0.833,3.333 0.833,3.333 1.083,3.104 false 0.667,4.083 0.833,4.083 0.833,4.083 1.135,3.917 false 0.958,0.917 1.271,1.073 0.313,0.156 10 false *a 1.406,2.333 1.719,2.49 0.313,0.156 10 false *b 3.104,2.583 3.333,2.75 0.229,0.167 10 false *c 2.083,1 2.396,1.156 0.313,0.156 10 false *d 0.5,4 0.813,4.156 0.313,0.156 10 false *e 2.25,0.417 2.563,0.573 0.313,0.156 10 false *f 2.167,1.333 2.479,1.49 0.313,0.156 10 false *f 0.5,3.26 0.813,3.417 0.313,0.156 10 false *f

*a	SST (Pressure Gauge)
*b	SST (Hose Joint)
*c	SST (Hose)
*d	SST (T-joint)
*e	SST (Fuel Tube Connector)
*f	SST (Hose Band)

Install SST (EFI fuel pressure gauge) as shown in the illustration.

SST: 09268-45101 (09268-41260, 09268-41280, 09268-41700, 95336-08070)
09268-00010 (09268-00020, 09268-00030)

Wipe up any spilled fuel.

Connect the cable to the negative (-) battery terminal.

NOTICE:: When disconnecting the cable, some systems need to be initialized after the cable is reconnected.; Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>INITIALIZATION

Connect the GTS to the DLC3.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

Powertrain > Engine and ECT > Active Test

Tester Display
Control the Fuel Pump / Speed

50004 234 5

Measure the fuel pressure.

Standard Fuel Pressure:: 304 to 343 kPa (3.1 to 3.5 kgf/cm², 44 to 50 psi)

If the fuel pressure is greater than the standard, replace the fuel pressure regulator assembly.

If the fuel pressure is less than the standard, check the fuel hoses and connections, fuel pump with filter assembly, fuel filter and fuel pressure regulator assembly.

Disconnect the GTS from the DLC3.

Start the engine.

Measure the fuel pressure at idle.

Standard Fuel Pressure:: 304 to 343 kPa (3.1 to 3.5 kgf/cm², 44 to 50 psi)

HINT:: Standard idle speed.; Click hereEngine / Hybrid System>2NZ-FE ENGINE MECHANICAL>ENGINE>ON-VEHICLE INSPECTION

Stop the engine.

Check that the fuel pressure remains as specified for 5 minutes after the engine stops.

Standard Fuel Pressure:: 147 kPa (1.5 kgf/cm², 21 psi) or more

If the fuel pressure is not as specified, check the fuel pump with filter assembly, fuel pressure regulator assembly and/or fuel injector assemblies.

After checking the fuel pressure, disconnect the cable from the negative (-) battery terminal and carefully remove SST (EFI fuel pressure gauge) to prevent fuel from spraying.

NOTICE:: When disconnecting the cable, some systems need to be initialized after the cable is reconnected.; Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>INITIALIZATION

Connect the fuel tube sub-assembly to the fuel pipe.

Click hereEngine / Hybrid System>2NZ-FE FUEL>FUEL SYSTEM>PRECAUTION

Install the No. 1 fuel pipe clamp. (for Vehicle Body Side)

Click hereEngine / Hybrid System>2NZ-FE FUEL>FUEL SYSTEM>PRECAUTION

Inspect for fuel leaks.

Click hereEngine / Hybrid System>2NZ-FE FUEL>FUEL SYSTEM>ON-VEHICLE INSPECTION