RM38N0EC _51 Engine / Hybrid System _111793 M20C-FKS, M20D-FKS FUEL _0504174 FUEL SYSTEM G

M20C-FKS, 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.

NOTICE:: Do not start the engine.

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 sub-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.

Hide Display 2.CHECK FUEL PRESSURE

Discharge fuel system pressure.

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (FUEL)>FUEL SYSTEM>PRECAUTION202111,999999,_51,_111793,_0504174,RM100000001ZHDE,

Measure the battery voltage.

Standard Voltage:: 11 to 14 V

0,0 0,0 false

	Open
	Pull

Open the cover of the EFI fuel pipe clamp and remove the EFI fuel pipe clamp from the fuel tube connector.

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

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (FUEL)>FUEL SYSTEM>PRECAUTION202111,999999,_51,_111793,_0504174,RM100000001ZHDE,

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.

Click hereGeneral>MAINTENANCE>M20C-FKS, M20D-FKS BATTERY>INSTALLATION202111,999999,_V1,_112220,_0503321,RM100000001ZE56,

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 / 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 more than the standard, replace the fuel main valve assembly.

If the fuel pressure is less than the standard, check the fuel hoses and their connections, fuel pump with filter assembly, fuel filter (fuel sub-tank sub-assembly) and 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>M20C-FKS, M20D-FKS (ENGINE MECHANICAL)>ENGINE>ON-VEHICLE INSPECTION202111,999999,_51,_111786,_0499716,RM100000001YZHY_01_0016,

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 with filter assembly, 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.

Click hereGeneral>MAINTENANCE>M20C-FKS, M20D-FKS BATTERY>REMOVAL202111,202203,_V1,_112220,_0503321,RM100000001ZE55,202203,202303,_V1,_112220,_0503321,RM1000000022EC9,202303,202406,_V1,_112220,_0503321,RM100000002AJT5,202406,999999,_V1,_112220,_0503321,RM100000002MSAX,

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

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (FUEL)>FUEL SYSTEM>PRECAUTION202111,999999,_51,_111793,_0504174,RM100000001ZHDE,

Install the EFI fuel pipe clamp to the fuel tube connector and close the cover of the EFI fuel pipe clamp.

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

Click hereGeneral>MAINTENANCE>M20C-FKS, M20D-FKS BATTERY>INSTALLATION202111,999999,_V1,_112220,_0503321,RM100000001ZE56,

Inspect for fuel leaks.

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (FUEL)>FUEL SYSTEM>ON-VEHICLE INSPECTION202111,999999,_51,_111793,_0504174,RM100000001ZHDC_01_0001,

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

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.

Powertrain > Engine > Data List

Tester Display
Coolant Temperature

50003 372 205

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

Powertrain > Engine > Data List

Tester Display
Engine Speed
Fuel Pressure (High)
Injection Mode

50003 372 211,265,294

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.