RM36D0EC _51 Engine / Hybrid System _083058 M20D-FKS ENGINE CONTROL _0401834 SFI SYSTEM C

M20D-FKS ENGINE CONTROL SFI SYSTEM P2A0026 O2 Sensor Circuit Range/Performance Bank 1 Sensor 1 Signal Rate of Change Below Threshold

DESCRIPTION

Refer to DTC P219519.

Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>P219519201910,999999,_51,_083058,_0401834,RM100000001JDZJ,P219519

HINT:: Although the DTC titles say oxygen sensor, this DTC relate to the air fuel ratio sensor (sensor 1).

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P2A0026	O2 Sensor Circuit Range/Performance Bank 1 Sensor 1 Signal Rate of Change Below Threshold	The calculated value for the air fuel ratio sensor (sensor 1) response rate deterioration level is less than the threshold (2 trip detection logic).	· Air fuel ratio sensor (sensor 1) · Intake system · Port fuel injector assembly · Fuel pressure (for low pressure side) · Fuel pressure (for high pressure side) · Fuel system · Gas leak from exhaust system · ECM	Comes on	DTC stored	SAE: P2A00

MONITOR DESCRIPTION

After the engine is warmed up, the ECM performs air fuel ratio feedback control to maintain the air fuel ratio at the stoichiometric level. In addition, active air fuel ratio control is performed for approximately 30 seconds after preconditions are met in order to measure the air fuel ratio sensor response rate. During active air fuel ratio control, the ECM forcibly increases and decreases the injection volume by a certain amount, based on the stoichiometric air fuel ratio learned during normal air fuel ratio control, and measures the air fuel ratio sensor response rate. The ECM receives a signal from the air fuel ratio sensor while performing active air fuel ratio control and uses it to calculate the air fuel ratio sensor response rate deterioration level.

If the value for the air fuel ratio sensor response rate deterioration level is less than the threshold, the ECM interprets this as a malfunction and stores this DTC.

4.271,1.469 4.115,1.167 false 5.219,1.615 5.438,1.052 false 0.063,0.042 1.917,0.25 1.854,0.208 10 Air Fuel Ratio Sensor Output: 0.073,0.76 1.833,1 1.76,0.24 10 Active Air Fuel Ratio Control 0.073,1.75 1.917,2 1.844,0.25 10 Air Fuel Ratio Sensor Output 3.635,1.042 4.167,1.25 0.531,0.208 10 Normal 5.479,0.958 6.25,1.167 0.771,0.208 10 Malfunction 3.896,0.25 6.125,0.521 2.229,0.271 10 Approximately 30 seconds or more 0.073,2.719 1.5,3 1.427,0.281 10 Fuel Injection Volume 2.865,2.531 3.5,2.75 0.635,0.219 10 Increase 2.865,2.875 3.5,3.083 0.635,0.208 10 Decrease 1.875,0.552 2.167,0.75 0.292,0.198 10 ON 1.875,0.854 2.25,1.083 0.375,0.229 10 OFF

MONITOR STRATEGY

Required Sensors/Components	Air fuel ratio sensor (sensor 1)
Frequency of Operation	Once per driving cycle

TYPICAL ENABLING CONDITIONS

Active air fuel ratio control	Performing
Active air fuel ratio control performed when following conditions met	-
Engine coolant temperature	75°C (167°F) or higher
Idling	Off
Engine speed	1000 rpm or higher, and less than 3000 rpm
Air fuel ratio sensor status	Activated
Engine load	10% or higher, and less than 100%
Catalyst monitor	Not executing
Mass air flow	4 gm/sec or more, and less than 16 gm/sec

CONFIRMATION DRIVING PATTERN

HINT:: ·

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR201910,202304,_51,_083058,_0401834,RM100000001JDWI,202304,202409,_51,_083058,_0401834,RM1000000029C72,202409,999999,_51,_083058,_0401834,RM100000002NA8O,

·

When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR201910,202304,_51,_083058,_0401834,RM100000001JDWI,202304,202409,_51,_083058,_0401834,RM1000000029C72,202409,999999,_51,_083058,_0401834,RM100000002NA8O,

·

Performing this confirmation driving pattern will activate the air fuel ratio sensor response monitor.

1.313,0.875 1.583,0.5 1.583,0.5 1.75,0.5 false 0.333,0.167 1.281,0.365 0.948,0.198 10 false Vehicle Speed 1.802,0.417 3.458,0.604 1.656,0.188 10 false Between 75 and 100 km/h 0.781,1.156 1.313,1.333 0.531,0.177 10 false 60 km/h 0.948,2.188 1.333,2.365 0.385,0.177 10 false Idling 0.198,2.479 1.313,2.667 1.115,0.188 10 false Ignition Switch off 1.781,2.698 2.573,2.885 0.792,0.188 10 false Warming up 2.969,2.729 4.198,2.917 1.229,0.188 10 false 10 minutes or more 5.531,2.729 6.76,2.917 1.229,0.188 10 false 10 minutes or more 2.042,2.115 2.271,2.292 0.229,0.177 10 false [A] 3.458,1.271 3.688,1.448 0.229,0.177 10 false [B] 4.375,3.135 4.604,3.313 0.229,0.177 10 false [C] 6.01,0.896 6.24,1.073 0.229,0.177 10 false [D] 6.75,3.135 6.979,3.313 0.229,0.177 10 false [E]

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

Turn the ignition switch off and wait for at least 30 seconds.

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

Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher [A].

Drive the vehicle at a speed of approximately 60 km/h (37 mph) for 10 minutes or more in a city area [B].

CAUTION:: When performing the confirmation driving pattern, obey all speed limits and traffic laws.

Enter the following menus: Powertrain / Engine / Trouble Codes [C].

10.

Read the pending DTCs.

HINT:: ·

If a pending DTC is output, the system is malfunctioning.

·

If a pending DTC is not output, perform the following procedure.

11.

Enter the following menus: Powertrain / Engine / Utility / All Readiness.

12.

Input the DTC: P2A0026.

13.

Check the DTC judgment result.

GTS Display	Description
NORMAL	· DTC judgment completed · System normal
ABNORMAL	· DTC judgment completed · System abnormal
INCOMPLETE	· DTC judgment not completed · Perform driving pattern after confirming DTC enabling conditions

HINT:: ·

If the judgment result shows NORMAL, the system is normal.

·

If the judgment result shows ABNORMAL, the system has a malfunction.

·

If the judgment result is INCOMPLETE, perform steps [D] through [E].

·

[A] to [C]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

·

When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

14.

Drive the vehicle at a speed between 75 and 100 km/h (47 and 62 mph) for 10 minutes [D].

CAUTION:: When performing the confirmation driving pattern, obey all speed limits and traffic laws.

15.

Enter the following menus: Powertrain / Engine / Trouble Codes [E].

16.

Read the pending DTCs.

HINT:: ·

If a pending DTC is output, the system is malfunctioning.

·

If a pending DTC is not output, perform the following procedure.

17.

Enter the following menus: Powertrain / Engine / Utility / All Readiness.

18.

Input the DTC: P2A0026.

19.

Check the DTC judgment result.

GTS Display	Description
NORMAL	· DTC judgment completed · System normal
ABNORMAL	· DTC judgment completed · System abnormal
INCOMPLETE	· DTC judgment not completed · Perform driving pattern after confirming DTC enabling conditions

HINT:: ·

If the judgment result shows NORMAL, the system is normal.

·

If the judgment result shows ABNORMAL, the system has a malfunction.

·

If the judgment result shows INCOMPLETE, drive the vehicle again under an increased load and then recheck the judgment result.

·

[A] to [E]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

·

When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

WIRING DIAGRAM

Refer to DTC P219519.

Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>P219519201910,999999,_51,_083058,_0401834,RM100000001JDZJ,P219519

CAUTION / NOTICE / HINT

NOTICE:: Inspect the fuses for circuits related to this system before performing the following procedure.

HINT:: ·

DTC P2A0026 may be also stored when the air fuel ratio is stuck at rich or lean.

·

A low air fuel ratio sensor (sensor 1) voltage could be caused by a rich air fuel mixture. Check for conditions that would cause the engine to run rich.

·

A high air fuel ratio sensor (sensor 1) voltage could be caused by a lean air fuel mixture. Check for conditions that would cause the engine to run lean.

·

Sensor 1 refers to the sensor closest to the engine assembly.

·

Sensor 2 refers to the sensor farthest away from the engine assembly.

·

Read freeze frame data using the GTS. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE

1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2A0026)

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Enter the following menus: Powertrain / Engine / Trouble Codes.

Read the DTCs.

Powertrain > Engine > Trouble Codes: 50001 372

Result:

Result	Proceed to
DTC P2A0026 is output	A
DTC P2A0026 and other DTCs are output	B

HINT:: If any DTCs other than P2A0026 are output, troubleshoot those DTCs first.

2.PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION VOLUME FOR A/F SENSOR)

GO TO DTC CHART

Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>DIAGNOSTIC TROUBLE CODE CHART201910,202304,_51,_083058,_0401834,RM100000001JDWP,202304,202409,_51,_083058,_0401834,RM1000000029C76,202409,999999,_51,_083058,_0401834,RM100000002NA2U,

2.PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION VOLUME FOR A/F SENSOR)

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.

Warm up the air fuel ratio sensors at an engine speed of 2500 rpm for 90 seconds.

Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / Data List / All Data / A/F (O2) Sensor Current B1S1 and A/F (O2) Sensor Current B1S2.

Powertrain > Engine > Active Test

Active Test Display
Control the Injection Volume for A/F Sensor

Data List Display
A/F (O2) Sensor Current B1S1
A/F (O2) Sensor Current B1S2

50004 372 8 230,564

Perform the Control the Injection Volume for A/F Sensor operation with the engine idling.

Monitor the output currents of the air fuel ratio sensors (A/F (O2) Sensor Current B1S1 and A/F (O2) Sensor Current B1S2) displayed on the GTS.

HINT:: ·

The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by 12.5% or increases the injection volume by 12.5%.

·

The air fuel ratio sensor (sensor 1) has an output delay of a few seconds and the air fuel ratio sensor (sensor 2) has a maximum output delay of approximately 20 seconds.

·

If the sensor output value does not change (almost no reaction) while performing the Active Test, the sensor may be malfunctioning.

Standard
GTS Display (Sensor)	Injection Volume	Status	Voltage
A/F (O2) Sensor Current B1S1 (Air fuel ratio sensor (sensor 1))	12.5%	Rich	Below -0.075 mA
	-12.5%	Lean	More than 0.037 mA
A/F (O2) Sensor Current B1S2 (Air fuel ratio sensor (sensor 2))	12.5%	Rich	Below -0.86 mA
	-12.5%	Lean	More than 0.33 mA

Result:

Status of A/F (O2) Sensor Current B1S1	Status of A/F (O2) Sensor Current B1S2	Air Fuel Ratio Condition and Air Fuel Ratio Sensor (Sensor 1) Condition	Proceed to
Lean/Rich	Lean/Rich	Normal	A
Lean	Lean	Actual air fuel ratio lean	B
Rich	Rich	Actual air fuel ratio rich	B
Lean	Lean/Rich	Air fuel ratio sensor (sensor 1) malfunction	C
Rich	Lean/Rich	Air fuel ratio sensor (sensor 1) malfunction	C

Lean: During the Control the Injection Volume for A/F Sensor Active Test, the air fuel ratio sensor (sensor 1) output current (A/F (O2) Sensor Current B1S1) is consistently more than 0.037 mA, and the air fuel ratio sensor (sensor 2) output current (A/F (O2) Sensor Current B1S2) is consistently more than 0.33 mA.

Rich: During the Control the Injection Volume for A/F Sensor Active Test, the air fuel ratio sensor (sensor 1) output current (A/F (O2) Sensor Current B1S1) is consistently below -0.075 mA, and the air fuel ratio sensor (sensor 2) output current (A/F (O2) Sensor Current B1S2) is consistently below -0.86 mA.

Lean/Rich: During the Control the Injection Volume for A/F Sensor Active Test, the output current of the air fuel ratio sensor (sensor 1) or air fuel ratio sensor (sensor 2) alternate correctly.

HINT:: Refer to "Data List / Active Test" [A/F (O2) Sensor Current B1S1, A/F (O2) Sensor Current B1S2].; Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>DATA LIST / ACTIVE TEST201910,202304,_51,_083058,_0401834,RM100000001JDW2,202304,202409,_51,_083058,_0401834,RM1000000029C75,202409,999999,_51,_083058,_0401834,RM100000002NA2T,

3.CLEAR DTC

7.INSPECT AIR FUEL RATIO SENSOR (SENSOR 1) (HEATER RESISTANCE)

16.REPLACE AIR FUEL RATIO SENSOR (SENSOR 1)

3.CLEAR DTC

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Clear the DTCs.

Powertrain > Engine > Clear DTCs: 50002 372

Turn the ignition switch off and wait for at least 30 seconds.

Result:

Proceed to
NEXT

4.CHECK WHETHER DTC OUTPUT RECURS (DTC P2A0026)

Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

Enter the following menus: Powertrain / Engine / Utility / All Readiness.

Powertrain > Engine > Utility

Tester Display
All Readiness

50005 372 20

Input the DTC: P2A0026.

Check the DTC judgment result.

Result:

Result	Proceed to
NORMAL (DTCs are not output)	A
ABNORMAL (DTC P2A0026 is output)	B

END

5.PERFORM ACTIVE TEST USING GTS (CONTROL THE EGR STEP POSITION)

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

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

HINT:: The A/C switch and all accessories should be off.

Enter the following menus: Powertrain / Engine / Active Test / Control the EGR Step Position / Data List / Engine Speed, Intake Manifold Absolute Pressure and Coolant Temperature.

Powertrain > Engine > Active Test

Active Test Display
Control the EGR Step Position

Data List Display
Engine Speed
Intake Manifold Absolute Pressure
Coolant Temperature

50004 372 25 211,385,205

Check the engine idling condition and Intake Manifold Absolute Pressure values in the Data List while performing the Active Test.

NOTICE:: ·

Do not leave the EGR valve open for 10 seconds or more during the Active Test.

·

Be sure to return the EGR valve to step 0 when the Active Test is completed.

·

Do not open the EGR valve 30 steps or more during the Active Test.

OK:: The value of Intake Manifold Absolute Pressure and Engine Speed change in response to EGR step position.

Standard:

-	Control the EGR Step Position (Active Test)
-	0 Steps	0 to 30 Steps
Idling condition	Steady idling	Idling changes from steady to rough idling or engine stalls
Intake Manifold Absolute Pressure (Data List)	Intake Manifold Absolute Pressure value is 18 to 38 kPa(abs) (2.6 to 5.5 psi(abs)) (EGR valve is fully closed)	Intake Manifold Absolute Pressure value is at least +10 kPa (1.45 psi) higher than when EGR valve is fully closed

HINT:: During Active Test, if the idling condition does not change in response to EGR step position, then there is probably a malfunction in the EGR valve.

Result:

Proceed to
OK
NG

16.REPLACE AIR FUEL RATIO SENSOR (SENSOR 1)

6.INSPECT EGR VALVE ASSEMBLY

Remove the EGR valve assembly.

Click hereEngine / Hybrid System>M20D-FKS (EMISSION CONTROL)>EGR VALVE>REMOVAL201910,999999,_51,_083061,_0402425,RM100000001JIM8,

Check if the EGR valve is stuck open.

OK:: EGR valve is tightly closed.

HINT:: Perform "Inspection After Repair" after replacing the EGR valve assembly.; Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION201910,202304,_51,_083058,_0401834,RM100000001JDW3,202304,202409,_51,_083058,_0401834,RM1000000029C6V,202409,999999,_51,_083058,_0401834,RM100000002NA8M,

Result:

Proceed to
OK
NG

16.REPLACE AIR FUEL RATIO SENSOR (SENSOR 1)

REPLACE EGR VALVE ASSEMBLY

Click hereEngine / Hybrid System>M20D-FKS (EMISSION CONTROL)>EGR VALVE>REMOVAL201910,999999,_51,_083061,_0402425,RM100000001JIM8,

7.INSPECT AIR FUEL RATIO SENSOR (SENSOR 1) (HEATER RESISTANCE)

Inspect the air fuel ratio sensor (sensor 1).

Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>AIR FUEL RATIO SENSOR>INSPECTION201910,202304,_51,_083058,_0401830,RM100000001JDV7,202304,999999,_51,_083058,_0401830,RM1000000029TF8,

HINT:: Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 1).; Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION201910,202304,_51,_083058,_0401834,RM100000001JDW3,202304,202409,_51,_083058,_0401834,RM1000000029C6V,202409,999999,_51,_083058,_0401834,RM100000002NA8M,

Result:

Proceed to
OK
NG

8.CHECK INTAKE SYSTEM

REPLACE AIR FUEL RATIO SENSOR (SENSOR 1)

Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>AIR FUEL RATIO SENSOR>REMOVAL201910,202304,_51,_083058,_0401830,RM100000001JDV9,202304,999999,_51,_083058,_0401830,RM100000002B2M2,

8.CHECK INTAKE SYSTEM

Check the intake system for vacuum leaks.

Click hereEngine / Hybrid System>M20D-FKS (INTAKE / EXHAUST)>INTAKE SYSTEM>ON-VEHICLE INSPECTION201910,999999,_51,_083062,_0402929,RM100000001JLXD,

OK:: No leaks in the intake system.

HINT:: Perform "Inspection After Repair" after repairing or replacing the intake system.; Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION201910,202304,_51,_083058,_0401834,RM100000001JDW3,202304,202409,_51,_083058,_0401834,RM1000000029C6V,202409,999999,_51,_083058,_0401834,RM100000002NA8M,

Result:

Proceed to
OK
NG

9.CHECK FOR EXHAUST GAS LEAK

REPAIR OR REPLACE INTAKE SYSTEM

9.CHECK FOR EXHAUST GAS LEAK

Check for exhaust gas leaks.

OK:: No gas leaks.

HINT:: Perform "Inspection After Repair" after repairing or replacing the exhaust system.; Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION201910,202304,_51,_083058,_0401834,RM100000001JDW3,202304,202409,_51,_083058,_0401834,RM1000000029C6V,202409,999999,_51,_083058,_0401834,RM100000002NA8M,

Result:

Proceed to
OK
NG

10.PERFORM ACTIVE TEST USING GTS (CONTROL THE EGR STEP POSITION)

REPAIR OR REPLACE EXHAUST SYSTEM

10.PERFORM ACTIVE TEST USING GTS (CONTROL THE EGR STEP POSITION)

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

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

HINT:: The A/C switch and all accessories should be off.

Enter the following menus: Powertrain / Engine / Active Test / Control the EGR Step Position / Data List / Engine Speed, Intake Manifold Absolute Pressure and Coolant Temperature.

Powertrain > Engine > Active Test

Active Test Display
Control the EGR Step Position

Data List Display
Engine Speed
Intake Manifold Absolute Pressure
Coolant Temperature

50004 372 25 211,385,205

Check the engine idling condition and Intake Manifold Absolute Pressure values in the Data List while performing the Active Test.

NOTICE:: ·

Do not leave the EGR valve open for 10 seconds or more during the Active Test.

·

Be sure to return the EGR valve to step 0 when the Active Test is completed.

·

Do not open the EGR valve 30 steps or more during the Active Test.

OK:: The value of Intake Manifold Absolute Pressure and Engine Speed change in response to EGR step position.

Standard:

-	Control the EGR Step Position (Active Test)
-	0 Steps	0 to 30 Steps
Idling condition	Steady idling	Idling changes from steady to rough idling or engine stalls
Intake Manifold Absolute Pressure (Data List)	Intake Manifold Absolute Pressure value is 18 to 38 kPa(abs) (2.6 to 5.5 psi(abs)) (EGR valve is fully closed)	Intake Manifold Absolute Pressure value is at least +10 kPa (1.45 psi) higher than when EGR valve is fully closed

HINT:: During Active Test, if the idling condition does not change in response to EGR step position, then there is probably a malfunction in the EGR valve.

Result:

Proceed to
OK
NG

12.CHECK FUEL PRESSURE (FOR LOW PRESSURE SIDE)

11.INSPECT EGR VALVE ASSEMBLY

Remove the EGR valve assembly.

Click hereEngine / Hybrid System>M20D-FKS (EMISSION CONTROL)>EGR VALVE>REMOVAL201910,999999,_51,_083061,_0402425,RM100000001JIM8,

Check if the EGR valve is stuck open.

OK:: EGR valve is tightly closed.

HINT:: Perform "Inspection After Repair" after replacing the EGR valve assembly.; Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION201910,202304,_51,_083058,_0401834,RM100000001JDW3,202304,202409,_51,_083058,_0401834,RM1000000029C6V,202409,999999,_51,_083058,_0401834,RM100000002NA8M,

Result:

Proceed to
OK
NG

12.CHECK FUEL PRESSURE (FOR LOW PRESSURE SIDE)

REPLACE EGR VALVE ASSEMBLY

Click hereEngine / Hybrid System>M20D-FKS (EMISSION CONTROL)>EGR VALVE>REMOVAL201910,999999,_51,_083061,_0402425,RM100000001JIM8,

12.CHECK FUEL PRESSURE (FOR LOW PRESSURE SIDE)

Check the fuel pressure (for low pressure side).

Click hereEngine / Hybrid System>M20D-FKS (FUEL)>FUEL SYSTEM>ON-VEHICLE INSPECTION201910,999999,_51,_083060,_0403631,RM100000001JU2Y_01_0002,

Result:

Proceed to
OK
NG

13.INSPECT PORT FUEL INJECTOR ASSEMBLY

19.CHECK FUEL LINE (FOR LOW PRESSURE SIDE)

13.INSPECT PORT FUEL INJECTOR ASSEMBLY

Inspect the port fuel injector assembly (whether fuel volume is high or low, and whether injection pattern is poor).

Click hereEngine / Hybrid System>M20D-FKS (FUEL)>FUEL INJECTOR (for Port Injection)>INSPECTION201910,999999,_51,_083060,_0403632,RM100000001JU2Z,

HINT:: Perform "Inspection After Repair" after replacing the port fuel injector assembly.; Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION201910,202304,_51,_083058,_0401834,RM100000001JDW3,202304,202409,_51,_083058,_0401834,RM1000000029C6V,202409,999999,_51,_083058,_0401834,RM100000002NA8M,

Result:

Proceed to
OK
NG

14.READ VALUE USING GTS (FUEL PRESSURE (HIGH))

REPLACE PORT FUEL INJECTOR ASSEMBLY

Click hereEngine / Hybrid System>M20D-FKS (FUEL)>FUEL INJECTOR (for Port Injection)>REMOVAL201910,202004,_51,_083060,_0403632,RM100000001JU32,202004,202304,_51,_083060,_0403632,RM100000001MUEI,202304,202405,_51,_083060,_0403632,RM100000002AAL7,202405,202409,_51,_083060,_0403632,RM100000002LUC9,202409,999999,_51,_083060,_0403632,RM100000002NFXV,

14.READ VALUE USING GTS (FUEL PRESSURE (HIGH))

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Enter the following menus: Powertrain / Engine / Data List / All Data / Fuel Pressure (High).

Powertrain > Engine > Data List

Tester Display
Fuel Pressure (High)

50003 372 265

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

Result:

Proceed to
OK
NG

15.INSPECT DIRECT FUEL INJECTOR ASSEMBLY

REPAIR OR REPLACE FUEL SYSTEM (FOR HIGH PRESSURE SIDE)

15.INSPECT DIRECT FUEL INJECTOR ASSEMBLY

Inspect the direct fuel injector assembly.

Click hereEngine / Hybrid System>M20D-FKS (FUEL)>FUEL INJECTOR (for Direct Injection)>INSPECTION201910,999999,_51,_083060,_0403633,RM100000001JU34,

HINT:: Perform "Inspection After Repair" after replacing the direct fuel injector assembly.; Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION201910,202304,_51,_083058,_0401834,RM100000001JDW3,202304,202409,_51,_083058,_0401834,RM1000000029C6V,202409,999999,_51,_083058,_0401834,RM100000002NA8M,

Result:

Proceed to
OK
NG

16.REPLACE AIR FUEL RATIO SENSOR (SENSOR 1)

REPLACE DIRECT FUEL INJECTOR ASSEMBLY

Click hereEngine / Hybrid System>M20D-FKS (FUEL)>FUEL INJECTOR (for Direct Injection)>REMOVAL201910,202004,_51,_083060,_0403633,RM100000001JU36,202004,202304,_51,_083060,_0403633,RM100000001N2IZ,202304,202405,_51,_083060,_0403633,RM100000002AAL9,202405,202409,_51,_083060,_0403633,RM100000002LUC8,202409,999999,_51,_083060,_0403633,RM100000002NFXW,

16.REPLACE AIR FUEL RATIO SENSOR (SENSOR 1)

Replace the air fuel ratio sensor (sensor 1).

Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>AIR FUEL RATIO SENSOR>REMOVAL201910,202304,_51,_083058,_0401830,RM100000001JDV9,202304,999999,_51,_083058,_0401830,RM100000002B2M2,

HINT:: Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 1).; Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION201910,202304,_51,_083058,_0401834,RM100000001JDW3,202304,202409,_51,_083058,_0401834,RM1000000029C6V,202409,999999,_51,_083058,_0401834,RM100000002NA8M,

Result:

Proceed to
NEXT

17.CLEAR DTC

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Clear the DTCs.

Powertrain > Engine > Clear DTCs: 50002 372

Turn the ignition switch off and wait for at least 30 seconds.

Result:

Proceed to
NEXT

18.CHECK WHETHER DTC OUTPUT RECURS (DTC P2A0026)

Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

Enter the following menus: Powertrain / Engine / Utility / All Readiness.

Powertrain > Engine > Utility

Tester Display
All Readiness

50005 372 20

Input the DTC: P2A0026.

Check the DTC judgment result.

Result:

Result	Proceed to
ABNORMAL (DTC P2A0026 is output)	A
NORMAL (DTCs are not output)	B

REPLACE ECM

Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>ECM>REMOVAL201910,202004,_51,_083058,_0401822,RM100000001JDUG,202004,202304,_51,_083058,_0401822,RM100000001N3G2,202304,202409,_51,_083058,_0401822,RM100000002A02S,202409,999999,_51,_083058,_0401822,RM100000002NRO9,

END

19.CHECK FUEL LINE (FOR LOW PRESSURE SIDE)

Check the fuel lines (for low pressure side) for leaks or blockage.

Result:

Proceed to
OK
NG

GO TO FUEL PUMP CONTROL CIRCUIT

Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>Fuel Pump Control Circuit201910,202304,_51,_083058,_0401834,RM100000001JE0B,202304,202409,_51,_083058,_0401834,RM1000000029CAL,202409,999999,_51,_083058,_0401834,RM100000002NEIX,

REPAIR OR REPLACE FUEL LINE (FOR LOW PRESSURE SIDE)