RM3660EC _51 Engine / Hybrid System _080749 8ZR-FXE FUEL _0393854 FUEL SYSTEM G

8ZR-FXE FUEL FUEL SYSTEM ON-VEHICLE INSPECTION

PROCEDURE

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

Check fuel pump operation.

Connect the GTS to the DLC3.

ii.

Turn the power switch on (IG).

NOTICE:: Do not start the engine.

iii.

Turn the GTS on.

iv.

Enter the following menus: Powertrain / Engine / Active Test / Activate the Circuit Relay.

Powertrain > Engine > Active Test

Tester Display
Activate the Circuit Relay

50004 372 38

Check for pressure in the fuel tube sub-assembly from the fuel line. Check that sounds of fuel flowing from the fuel tank assembly can be heard. If no sounds can be heard, check the relay, fuel pump, 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 power switch off.

Disconnect the GTS from the DLC3.

Hide Display 2.CHECK FUEL PRESSURE

Discharge fuel system pressure.

Click hereEngine / Hybrid System>8ZR-FXE (FUEL)>FUEL SYSTEM>PRECAUTION202304,999999,_51,_080749,_0393854,RM10000000293GY,

Measure the auxiliary battery voltage.

Standard Voltage:: 11 to 14 V

0,0 0,0 false

	Open
	Pull

Open the cover of the No. 1 fuel pipe clamp and remove the No. 1 fuel pipe clamp from the fuel tube connector.

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

Click hereEngine / Hybrid System>8ZR-FXE (FUEL)>FUEL SYSTEM>PRECAUTION202304,999999,_51,_080749,_0393854,RM10000000293GY,

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 0.698,3.073 1.073,3.073 false 0.76,3.906 1.135,3.906 false 0.833,4.292 1.208,4.292 false 1.927,1.021 1.927,0.729 false 2.365,1.542 2.74,1.542 false 2.438,0.333 2.813,0.333 false 2.458,1.146 2.833,1.146 false 2.635,2.833 3.01,2.833 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 3.094,2.74 3.323,2.906 0.229,0.167 10 false *c 2.229,1.073 2.542,1.281 0.313,0.208 10 false *d 0.542,3.813 0.865,4.063 0.323,0.25 10 false *e 2.25,0.26 2.563,0.5 0.313,0.24 10 false *f 2.177,1.458 2.5,1.698 0.323,0.24 10 false *f 0.51,3 0.813,3.302 0.302,0.302 10 false *f 0.615,4.188 0.938,4.417 0.323,0.229 10 false *g 1.854,1.083 2.167,1.323 0.313,0.24 10 false *1

*1	Fuel Tube Sub-assembly (Vehicle Side)
*a	SST (Gauge)
*b	SST (Hose Joint)
*c	SST (Hose)
*d	SST (T Joint)
*e	SST (Fuel Tube Connector)
*f	SST (Hose Band)
*g	Fuel Pipe (Vehicle Side)

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

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

Wipe up any spilled fuel.

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

Click hereGeneral>MAINTENANCE>8ZR-FXE AUXILIARY BATTERY>INSTALLATION202304,999999,_V1,_080956,_0392376,RM100000002ACL8,

Connect the GTS to the DLC3.

Turn the power switch on (IG).

NOTICE:: Do not start the engine.

Turn the GTS on.

Enter the following menus: Powertrain / Engine / Active Test / Activate the Circuit Relay.

Powertrain > Engine > Active Test

Tester Display
Activate the Circuit Relay

50004 372 38

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 more than the standard, replace the fuel pressure regulator assembly.

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

Put the engine in Inspection Mode (Maintenance Mode).

Powertrain > Hybrid Control > Utility

Tester Display
Inspection Mode

50005 397 2103

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:: Refer to Standard Idle Speed.; Click hereEngine / Hybrid System>8ZR-FXE (ENGINE MECHANICAL)>ENGINE>ON-VEHICLE INSPECTION201906,999999,_51,_080726,_0391614,RM100000001HLFV_01_0016,

Disconnect the GTS from the DLC3.

Stop the engine.

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

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

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

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

Click hereGeneral>MAINTENANCE>8ZR-FXE AUXILIARY BATTERY>REMOVAL202304,999999,_V1,_080956,_0392376,RM100000002ACL7,

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

Click hereEngine / Hybrid System>8ZR-FXE (FUEL)>FUEL SYSTEM>PRECAUTION202304,999999,_51,_080749,_0393854,RM10000000293GY,

Install the No. 1 fuel pipe clamp to the fuel tube connector and close the cover of the No. 1 fuel pipe clamp.

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

Click hereGeneral>MAINTENANCE>8ZR-FXE AUXILIARY BATTERY>INSTALLATION202304,999999,_V1,_080956,_0392376,RM100000002ACL8,

Inspect for fuel leaks.

Click hereEngine / Hybrid System>8ZR-FXE (FUEL)>FUEL SYSTEM>ON-VEHICLE INSPECTION202304,999999,_51,_080749,_0393854,RM10000000293H2_01_0001,