RM36D0EC _51 Engine / Hybrid System _083060 M20D-FKS FUEL _0403631 FUEL SYSTEM G

M20D-FKS 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 ignition switch to ON.

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 40

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 ignition switch off.

Disconnect the GTS from the DLC3.

Hide Display 2.CHECK FUEL PRESSURE

Discharge fuel system pressure.

Click hereEngine / Hybrid System>M20D-FKS (FUEL)>FUEL SYSTEM>PRECAUTION201910,202004,_51,_083060,_0403631,RM100000001JU2W,202004,999999,_51,_083060,_0403631,RM100000001MUZU,

Measure the battery voltage.

Standard voltage:: 11 to 14 V

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

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>M20D-FKS (FUEL)>FUEL SYSTEM>PRECAUTION201910,202004,_51,_083060,_0403631,RM100000001JU2W,202004,999999,_51,_083060,_0403631,RM100000001MUZU,

0.219,1.031 0.333,1.031 0.333,1.031 0.427,1.292 false 1.604,0.354 1.719,0.354 1.719,0.354 1.844,0.438 false 2.594,1.104 2.792,0.719 2.792,0.719 2.896,0.719 false 0.938,3.083 1.146,3.083 false 1.083,3.75 1.292,3.75 false 1.167,4.083 1.375,4.083 false 2.719,2.563 2.865,2.25 2.865,2.25 2.948,2.25 false 1.365,1.917 1.438,1.635 1.438,1.635 1.531,1.635 false 1.385,1.094 1.385,0.906 false 1.76,1.26 1.875,1.26 1.875,1.26 1.99,1.021 false 1.302,1.115 1.615,1.271 0.313,0.156 10 false *1 1.427,0.26 1.74,0.417 0.313,0.156 10 false *a 1.604,1.177 1.917,1.333 0.313,0.156 10 false *b 0.063,0.938 0.375,1.094 0.313,0.156 10 false *c 1.573,1.552 1.885,1.708 0.313,0.156 10 false *d 3,2.167 3.313,2.323 0.313,0.156 10 false *e 0.927,3.667 1.24,3.823 0.313,0.156 10 false *f 1.01,3.979 1.25,4.208 0.24,0.229 10 false *g 2.938,0.635 3.25,0.792 0.313,0.156 10 false *a 0.781,2.979 1.094,3.135 0.313,0.156 10 false *a

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

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

SST: 09268-45101 (09268-41250, 09268-41260, 09268-41280, 09268-41500, 09268-41700, 95336-08070)

Wipe up any spilled fuel.

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

HINT:: When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.; Click here

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

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 40

Measure the fuel pressure.

Standard fuel pressure:: 300 to 530 kPa (3.1 to 5.4 kgf/cm², 44 to 77 psi)

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

If the result is not as specified, replace the fuel main valve assembly.

Disconnect the GTS from the DLC3.

Start the engine.

Measure the fuel pressure at idle.

Standard fuel pressure:: 300 to 530 kPa (3.1 to 5.4 kgf/cm², 44 to 77 psi)

HINT:: Refer to Standard Idle Speed.; Click hereEngine / Hybrid System>M20D-FKS (ENGINE MECHANICAL)>ENGINE>ON-VEHICLE INSPECTION201910,999999,_51,_083059,_0403040,RM100000001JN11_01_0029,

Stop the engine.

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

Standard fuel pressure:: 98 kPa (1.0 kgf/cm², 14.2 psi) or more

If the result is not as specified, check the fuel pump, fuel main valve assembly and/or port fuel injector assemblies.

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

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

Click hereEngine / Hybrid System>M20D-FKS (FUEL)>FUEL SYSTEM>PRECAUTION201910,202004,_51,_083060,_0403631,RM100000001JU2W,202004,999999,_51,_083060,_0403631,RM100000001MUZU,

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

Inspect for fuel leaks.

Click hereEngine / Hybrid System>M20D-FKS (FUEL)>FUEL SYSTEM>ON-VEHICLE INSPECTION201910,999999,_51,_083060,_0403631,RM100000001JU2Y_01_0001,

Hide Display 3.CHECK FUEL PRESSURE (for High Pressure)

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Enter the following menus: Powertrain / Engine / Data List / Engine Speed, Coolant Temperature, Fuel Pressure (High) and Injection Mode.

Powertrain > Engine > Data List

Tester Display
Engine Speed
Coolant Temperature
Fuel Pressure (High)
Injection Mode

50003 372 211,205,265,294

Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off.

According to the display on the GTS, read the Data List.

Standard:

GTS Display	Condition	Specified Condition
Fuel Pressure (High)	· Shift position: P · A/C: Off · Engine warmed up · Engine Speed: 3000 rpm · Injection Mode: Direct	2400 to 20000 kPag

If the result is not as specified, check the fuel pump, fuel pump assembly, fuel pressure sensor and wire harnesses.

Stop the engine.