DTC    P0087    Fuel Rail / System Pressure - Too Low
DTC    P0088    Fuel Rail / System Pressure - Too High
DTC    P0191    Fuel Rail Pressure Sensor Circuit Range / Performance
DTC    P1229    Fuel Pump System
DTC    P1272    Fuel Pressure Regulator System Malfunction

for Preparation Click here

DESCRIPTION

1. DTCs to indicate a fuel pressure malfunction (P0087, P0088, P0191, P1229 and P1272)
   These DTCs are to indicate in which mode a malfunction was detected. They do not indicate which part was malfunctioning when the fuel pressure malfunction was detected.
   

   HINT:

   All of the following DTCs can be detected when the engine speed is 630 rpm or more.

   
   

   P0087 

   DTC Detection Drive Pattern	DTC Detection Condition	Trouble Area
   Following conditions is met: Idling with warm engine. Then fully depress and release the accelerator pedal repeatedly several times while keeping the vehicle stationary. HINT: Please refer to the Freeze Frame Data, in particular Vehicle Speed, Engine Speed, MAF, MAP, Calculate Load, Coolant Temp.	Both of following conditions 1 and 2 are met (1 trip detection condition). 1. Transition period (within 1 second) during following fuel pressure control status. - Fuel pressure controlled with pressure control valve. - Fuel pressure controlled with suction control valve. - Fuel pressure controlled with both pressure control valve and suction control valve. 2. Common rail internal pressure is less than 12 to 15 MPa (varies with engine speed) for 0.3 seconds.	Supply pump assembly (suction control valve) Open or short in pressure control valve circuit Common rail assembly (pressure control valve) Fuel filter element clogged Fuel leak Injector assembly Lack of fuel Fuel line (air bleeding) ECM
   Control mode: Fuel pressure malfunction when in transition of control modes (within 1 second).
   Purpose of Monitoring: Leakage in the high pressure range, injection nozzle stuck in open position, worn high pressure pump, worn injector, leaking pressure control valve. Possible errors in the low pressure stage: Pressure before gear pump too low, gear pump output too low (filter clogged up, leak on low pressure side), supply pump output too low.

   
   

   P0088 

   DTC Detection Drive Pattern	DTC Detection Condition	Trouble Area
   Following conditions is met: Idling with warm engine. Then fully depress and release the accelerator pedal repeatedly several times while keeping the vehicle stationary. HINT: Please refer to the Freeze Frame Data, in particular Vehicle Speed, Engine Speed, MAF, MAP, Calculate Load, Coolant Temp.	Both of following conditions 1 and 2 are met (1 trip detection condition). 1. Transition period (within 1 second) during following fuel pressure control status. - Fuel pressure controlled with pressure control valve. - Fuel pressure controlled with suction control valve. - Fuel pressure controlled with both pressure control valve and suction control valve. 2. Common rail internal pressure is 175 MPa or more for 0.3 seconds.	Supply pump assembly (suction control valve) Open or short in supply pump (suction control valve) circuit Open or short in pressure control valve circuit Common rail assembly (pressure control valve) Fuel filter element clogged Fuel leak Injector assembly Lack of fuel Fuel line (air bleeding) ECM
   Control mode: Fuel pressure malfunction when in transition of control modes (within 1 second).
   Purpose of Monitoring: Pressure control valve stuck closed, pressure control valve supplied with power due to electrical error, suction control valve stuck in open position, orifice clogged up, suction control valve without power due to electrical error. Possible errors in the low pressure stage: Pressure before gear pump too great (e.g. supply pump with pressure control valve), pressure after orifice too high.

   
   

   P0191 

   DTC Detection Drive Pattern	DTC Detection Condition	Trouble Area
   Following conditions is met: Idling with warm engine. Then fully depress and release the accelerator pedal repeatedly several times while keeping the vehicle stationary. HINT: Please refer to the Freeze Frame Data, in particular Vehicle Speed, Engine Speed, MAF, MAP, Calculate Load, Coolant Temp.	Both of following conditions 1 and 2 are met (1 trip detection condition). 1. Common rail internal pressure is regulated using both suction control valve (supply pump) and pressure control valve while engine running with light load (including idling) and fuel temperature above 15°C (59°F). 2. Common rail internal fuel pressure does not rise to target fuel pressure even when pressure control valve controlled to close fully.	Supply pump assembly (suction control valve) Open or short in supply pump (suction control valve) circuit Open or short in pressure control valve circuit Common rail assembly (pressure control valve) Fuel filter element clogged Fuel leak Injector assembly Lack of fuel Fuel line (air bleeding) ECM
   Start the engine, then turn the ignition switch off and wait for 30 seconds or more when fuel temperature is 40°C (104°F) or more, and then turn the ignition switch to ON. HINT: Please refer to the Freeze Frame Data, in particular Vehicle Speed, Engine Speed, MAF, MAP, Calculate Load, Coolant Temp.	After certain period of time has elapsed after engine stop (pressure control valve releases common rail internal pressure during this period), common rail internal pressure deviates from normal range. (Determination of a malfunction is conducted within a given time after the ignition switch is turned from ON to off. If a malfunction is detected within this time, the MIL is illuminated and a DTC is set when the ignition switch is next turned to ON.) (1 trip detection condition).	High pressure fuel line Common rail assembly Supply pump assembly Injector assembly ECM
   Control mode: Fuel pressure malfunction when in PCV and SCV cooperative control.
   Purpose of Monitoring: Leakage in the high pressure range, injection nozzle stuck in open position, worn high pressure pump, worn injector, fuel pressure sensor malfunction, leaking pressure control valve. Possible errors in the low pressure stage. Pressure before gear pump too low, gear pump output too low (filter clogged up, leak on low pressure side), supply pump output too low.

   
   

   P1229 

   DTC Detection Drive Pattern	DTC Detection Condition	Trouble Area
   Drive the vehicle when fuel temperature is 15°C (59°F) or more. HINT: Detection of this DTC intermitted during idling or accelerator pedal fully released. Please refer to the Freeze Frame Data, in particular Vehicle Speed, Engine Speed, MAF, MAP, Calculate Load, Coolant Temp.	Both of following conditions 1 and 2 are met (1 trip detection condition). 1. Common rail internal pressure is regulated using suction control valve (supply pump) while all of following conditions are met.* - Fuel temperature is above 15°C (59°F). - After certain period of time (maximum 300 seconds) has elapsed after engine start. - Medium or heavy load condition. HINT: *: At this time, suction control valve sending minimum volume of fuel depending on engine speed, load and fuel pressure, so it can reduce fuel temperature rising and reduce engine load. Fuel pressure control response with suction control valve is not as fast as pressure control valve. 2. One of the following conditions (a), (b) or (c) is met: (a) Common rail internal pressure is less than 12 to 15 MPa for 0.3 seconds. (b) Common rail internal pressure is 175 MPa or more for 0.3 seconds. (c) Actual fuel pressure remains lower than target rail pressure (The actual fuel pressure remains 17 to 20 MPa or lower for 1 second. Although the pressure control valve has sufficiently closed afterward, the actual fuel pressure still remains low for 1 second.)	Supply pump assembly (suction control valve) Open or short in supply pump (suction control valve) circuit Open or short in pressure control valve circuit Common rail assembly (pressure control valve) Fuel filter element clogged Fuel leak Injector assembly Lack of fuel Fuel line (air bleeding) ECM
   Control mode: Fuel pressure malfunction when SCV (Suction Control Valve) control.
   Purpose of Monitoring (DTC detection condition 2-(a)): Leakage in the high pressure range, injection nozzle stuck in open position, worn high pressure pump, worn injector, leaking pressure limiting or pressure control valve. Possible error in the low pressure stage. Pressure before gear pump too low, gear pump output too low (filter clogged up, leak on low pressure side), supply pump output too low.
   Purpose of Monitoring (DTC detection condition 2-(b)): Suction control valve is stuck in open position, orifice clogged up, suction control valve without power due to electrical error. Possible error in the low pressure stage. Pressure before gear pump too great (e.g. in the case of an supply pump with pressure control valve), pressure after orifice too high.
   Purpose of Monitoring (DTC detection condition 2-(c)): Leakage in the high pressure range, injection nozzle stuck in open position, worn high pressure pump, worn injector, leaking pressure limiting valve. Possible error in the low pressure stage. Pressure before gear pump too low, gear pump output too low (filter clogged up, leak on low pressure side), supply pump output too low.

   
   

   P1272 

   DTC Detection Drive Pattern	DTC Detection Condition	Trouble Area
   One of following conditions (a), (b), (c) or (d) is met: (a) When the fuel temperature is 15°C (59°F) or more and accelerator pedal fully released. (b) Engine idling (c) All driving condition when fuel temperature is 10°C (50°F) or less. (d) Within certain period of time (maximum 300 seconds) after engine start. HINT: Please refer to the Freeze Frame Data, in particular Vehicle Speed, Engine Speed, MAF, MAP, Calculate Load, Coolant Temp.	Both of the following conditions 1 and 2 are met (1 trip detection logic). 1. Either of following conditions (1) or (2) is met (1) Common rail internal pressure is regulated using pressure control valve under one of the following condition is met* - Fuel temperature is below 15°C (59°F) - Within certain period of time after engine start (maximum 300 seconds, regardless of fuel temperature) (2) Common rail internal pressure is regulated using both suction control valve (supply pump) and pressure control valve while engine running with light load (including idling) and fuel temperature above 15°C (59°F) HINT: *: At this time, suction control valve sending maximum volume of fuel at that engine speed. Pressure control valve can reduce common rail pressure quickly during sudden deceleration. 2. One of the following conditions (a), (b), (c) or (d) is met: (a) Common rail internal pressure is less than 12 to 15 MPa for 0.3 seconds. (b) Common rail internal pressure is 175 MPa or more for 0.3 seconds. (c) Although the pressure control valve has sufficiently opened, actual fuel pressure remains higher than target fuel pressure by 25 MPa or more for 1 second. (d) Actual fuel pressure remains lower than target rail pressure (The actual fuel pressure remains 17 to 20 MPa or lower than target fuel pressure for 1 second. Although the pressure control valve has sufficiently closed afterward, the actual fuel pressure still remains low for 1 second.)	Supply pump assembly (suction control valve) Open or short in supply pump (suction control valve) circuit Open or short in pressure control valve circuit Common rail assembly (pressure control valve) Fuel filter element clogged Fuel leak Injector assembly Lack of fuel Fuel line (air bleeding) ECM
   Control mode: Fuel pressure malfunction when in PCV (Pressure Control Valve) control, or when switching to PCV and SCV cooperative control.
   Purpose of Monitoring (DTC detection condition 2-(a)): Leakage in the high pressure range, injection nozzle stuck in open position, worn high pressure pump, worn injector, leaking pressure limiting or pressure control valve. Possible error in the low pressure stage. Pressure before gear pump too low, gear pump output too low (filter clogged up, leak on low pressure side), supply pump output too low.
   Purpose of Monitoring (DTC detection condition 2-(b)): Pressure control valve stuck closed, pressure control valve supplied with power due to electrical error, suction control valve stuck in open position, orifice clogged up, suction control valve without power due to electrical error. Possible error in the low pressure stage. Pressure before gear pump too great (e.g. in the case of an supply pump with pressure control valve), pressure after orifice too high.
   Purpose of Monitoring (DTC detection condition 2-(c)): Leakage in the high pressure range, injection nozzle stuck in open position, worn high pressure pump, worn injector, leaking pressure limiting or pressure control valve. Possible error in the low pressure stage. Pressure before gear pump too low, gear pump output too low (filter clogged up, leak on low pressure side), supply pump output too low.
   Purpose of Monitoring (DTC detection condition 2-(d)): Pressure control valve stuck, pressure control valve supplied with power due to electrical error. Possible error in the low pressure stage. Pressure control valve reflux too high.

HINT:

When the engine is running, the actual common rail internal pressure (Fuel Press) follows the target common rail internal pressure (Target Common Rail Pressure). Under a stable condition such as idling, Fuel Press is within +/-10000 kPa of Target Common Rail Pressure.

HINT:

1. If DTC P0087, P0088, P0191, P1229 or P1272 is stored, the following symptoms may appear.
   
1. Lack of power or engine stall due to fail-safe operation
   
2. If the Fuel Press is 175000 kPa or more.
   
1. Combustion noise worsens
   
3. If the Fuel Press is 15000 kPa or less.
   
1. Difficult to start
   
4. If the Fuel Press is more than "Target Common Rail Pressure + 20000 kPa".
   
1. Combustion noise worsens
   
5. If the Fuel Press is less than "Target Common Rail Pressure - 20000 kPa".
   
1. Difficult to start
   
2. Poor acceleration
   
3. Engine stall
   

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

1. When replacing the ECM and/or fuel injector, the ECM needs Registration and Initialization (Click here).
   
2. Inspect the fuses for circuits related to this system before performing the following inspection procedure.
   

HINT:

1. When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the intelligent tester. Then after installing the new ECM, perform all of the initializations/registrations for the "Learning Values Write" function by following the instructions shown on the tester display.
   
2. Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
   
3. If the value of "Target Pump SCV Current" in the freeze frame data exceeds 1530 mA, the supply pump assembly may have a malfunction.
   
4. Before starting the inspection procedure, check the following items of freeze frame data carefully for identifying the cause of the malfunction, and in judging whether it was temporary or not.
   
1. Target Common Rail Pressure
   
2. Fuel Press
   
3. Target Pump SCV Current
   
4. Fuel Temperature
   
5. Engine Speed
   
6. MAF
   
7. MAP
   
8. Vehicle Speed
   
9. Coolant Temp.
   

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch to ON and turn the tester on.
   

3. Enter the following menus: Powertrain / Engine and ECT / DTC.
   

4. Record the stored DTCs and Freeze Frame Data.
   

   Result 

   Result	Proceed to
   DTC P0087, P0088, P0191, P1229 or P1272	A
   DTC P0087, P0088, P0191, P1229 or P1272 and other DTCs	B

   HINT:

   If any DTCs other than P0087, P0088, P0191, P1229 or P1272 are output, troubleshoot those DTCs first.

B	GO TO DTC CHART (Click here)

A

1. Check if the fuel level is low.
   

   Result 

   Result	Proceed to
   The fuel gauge (segment) blinks	A
   The fuel gauge (segment) does not blink	B

B	Go to step 6

A

NEXT

1. Bleed air from fuel system (Click here).
   

NEXT

1. Connect the intelligent tester to the DLC3.
   

2. Clear the DTCs (Click here).
   

3. Turn the ignition switch off and wait for 30 seconds.
   

4. If the DTC P1272 is stored in the result of Step 1, perform the (A) to (C) confirmation driving pattern process. If the result of Step 1 is other than DTC P1272, perform the (D) to (F) confirmation driving pattern process.
   

5. Start the engine when the fuel temperature is 15°C (59°F) or less. (A)
   

6. Drive the vehicle in 2nd gear. (B)
   

7. Fully depress the accelerator pedal, and then fully release it from engine speed of 3000 rpm or more. (C)
   

8. Allow the engine to idle until the engine coolant temperature reaches 75°C (167°F) or more. (D)
   

9. Drive the vehicle in 2nd gear. (E)
   

10. Fully depress the accelerator pedal, and then fully release it from engine speed of 3000 rpm or more. (F)
    

11. Enter the following menus: Powertrain / Engine and ECT / DTC.
    

12. Read the DTCs.
    

    HINT:

    Take a snapshot under a stable condition such as idling, confirm the Fuel Press is within +/-10000 kPa of Target Common Rail Pressure.

    HINT:

    Perform the following procedure using the tester to determine whether or not the DTC judgment has been carried out.

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

    2. Input DTC P0087, P0088, P0191, P1229 or P1272.
       

    3. Check that STATUS is NORMAL. If STATUS is INCOMPLETE or UNKNOWN, repeat the confirmation driving pattern process.
       

       Result 

       Result	Proceed to
       NORMAL	A
       ABNORMAL	B

B	Go to step 6

A
DTC CAUSED BY RUNNING OUT OF FUEL

1. Connect the intelligent tester to the DLC3.
   

2. Clear the DTCs (Click here).
   

NEXT

OK:

The engine can be started within 4 seconds.

NOTICE:

Just after starting the engine, visually check for fuel leaks from the supply pump, the fuel injectors, the common rail, and the fuel pipes in high-pressure areas.

OK	Go to step 17
NG	Go to step 8

1. Bleed air from fuel system (Click here).
   

NEXT

1. Check whether the engine can be started.
   

OK:

The engine can be started.

OK	Go to step 17
NG	Go to step 10

1. Check the following items (fuel line from fuel tank to supply pump), and repair or replace the malfunctioning part if necessary.
   

   1. Check for fuel filter clogging.
      

   2. Check for fuel freezing in the fuel line when the cold condition.
      

   3. Check for clogging or leaks in the fuel pipe and hose between the fuel tank and fuel supply pump.
      

NEXT

1. Check whether the engine can be started.
   

OK:

The engine can be started.

OK	Go to step 17
NG	Go to step 12

1. Replace the fuel supply pump assembly (Click here).
   

NEXT

1. Bleed air from fuel system (Click here).
   

NEXT

1. Check whether the engine can be started.
   

OK:

The engine can be started.

OK	Go to step 17
NG	Go to step 15

1. Replace the common rail assembly (Click here).
   

NEXT

1. Bleed air from fuel system (Click here).
   

NEXT

1. Read the value of Target Pump SCV Current in Freeze Frame Data recorded in Step 1.
   

   Standard:

   Tester Display (Freeze Frame Data Item)	Specified Condition
   Target Pump SCV Current	Below 1530 mA

NG	Go to step 30

OK

1. Read the value of Fuel Press and Target Common Rail Pressure in Freeze Frame Data recorded in Step 1.
   

   Standard:

   Tester Display (Freeze Frame Data Item)	Specified Condition
   Fuel Press	Below 175000 kPa

2. Start the engine and warm it up.
   

3. Enter the following menus: Powertrain / Engine and ECT / Data List / Fuel Press and Target Common Rail Pressure.
   

4. Check that the Fuel Press is within the specification below.
   

   Standard:

   Fuel Press is within +/-10000 kPa of Target Common Rail Pressure when engine is idling.
   

   
   

   Result 

   Result	Proceed to
   Both conditions are met: Fuel Press of Freeze Frame Data is 175000 kPa or more Fuel Press is within +/-10000 kPa of Target Common Rail Pressure when engine is idling	B
   Except above	A

B	Go to step 28

A

HINT:

Perform the procedures below to identify the malfunctioning cylinder.

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

2. Allow the engine to idle for 30 seconds or more.
   

3. Connect the intelligent tester to the DLC3.
   

4. Enter the following menus: Powertrain / Engine and ECT / Data List / Injection Feedback Val #1 to #4.
   

5. Read the value.
   
   

   Standard:

   
   

   Tester Display (Data List Item)	Engine Condition	Specified Condition
   Injection Feedback Val #1 Injection Feedback Val #2 Injection Feedback Val #3 Injection Feedback Val #4	Idling	Between -2.0 mm3/st and 2.0 mm3/st

NG	Go to step 21

OK

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch to ON and turn the tester on.
   

3. Enter the following menus: Powertrain / Engine and ECT/ Active Test / Test the Fuel Leak / Data List / Fuel Press, Target Common Rail Pressure and Target Pump SCV Current.
   

4. Check the Fuel Press is within +/-10000 kPa of Target Common Rail Pressure when engine is idling and running at 3000 rpm without load.
   

5. Take a snapshot with the intelligent tester during the Active Test.
   

   HINT:

   Detailed graphs can be displayed by transferring the stored snapshot data from the tester to a PC (personal computer) with Intelligent Viewer installed.

6. Maintain the engine speed of 3500 rpm, and then press the "Start" button.
   

7. Measure the difference between the target fuel pressure (Target Common Rail Pressure) and the actual fuel pressure (Fuel Press) when the Active Test /Test the Fuel Leak is performed.
   

   
   
   
   

   NOTICE:

   The EPS, ABS and SRS warning lights may blink when the engine speed exceeds 3500 rpm during the operating this test.

   HINT:

   To ensure accurate measurements, perform the Active Test with measurements 5 times or more.

   Standard:

   The difference between the target fuel pressure and the actual fuel pressure is less than 15000 kPa when the target fuel pressure reaches the maximum value approximately 2 seconds after the Active Test starts.
   

8. Read the value of Target Pump SCV Current in Data List when the Active Test / Test the Fuel Leak is performed.
   

   Standard current:

   Target Pump SCV Current is less than 1530 mA.
   

   HINT:

   If the value of Target Pump SCV Current stored in Freeze Frame Data is higher than standard, intermittent sticking of the suction control valve may be the cause of the malfunction.

A	Go to step 34
B	Go to step 25
C	Go to step 30
D	Go to step 28

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

2. Connect the intelligent tester to the DLC3.
   

3. Turn the tester on.
   

4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Cylinder#1 to #4 Fuel Cut.
   

5. Check the four cylinders in sequence to identify a faulty cylinder.
   

   HINT:

   1. DTCs may be output after this Active Test. Make sure to check for DTCs after this Active Test. If any DTCs are output, make sure to clear them (Click here).
      
   2. If the engine idling remains normal despite cutting off the fuel injection, the cylinder is malfunctioning.
      

NEXT

1. Replace the injector assembly of the malfunctioning cylinder (Click here).
   

NEXT

1. Perform registration of the fuel injector compensation code (Click here).
   

NEXT

1. Bleed air from fuel system (Click here).
   

NEXT	Go to step 34

HINT:

If the supply pump assembly has already been replaced in step 12, proceed to next step.

1. Replace the supply pump assembly (Click here).
   

NEXT

1. Bleed air from fuel system (Click here).
   

NEXT

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch to ON and turn the tester on.
   

3. Enter the following menus: Powertrain / Engine and ECT/ Active Test / Test the Fuel Leak / Data List / Fuel Press and Target Common Rail Pressure.
   

4. Take a snapshot with the intelligent tester during the Active Test.
   

   HINT:

   Detailed graphs can be displayed by transferring the stored snapshot data from the tester to a PC (personal computer) with Intelligent Viewer installed.

5. Maintain the engine speed of 3500 rpm, and then press the "Start" button.
   

6. Measure the difference between the target fuel pressure (Target Common Rail Pressure) and the actual fuel pressure (Fuel Press) when the Active Test /Test the Fuel Leak is performed.
   

   
   
   
   

   NOTICE:

   The EPS, ABS and SRS warning lights may blink when the engine speed exceeds 3500 rpm during the operating this test.

   HINT:

   To ensure accurate measurements, perform the Active Test with measurements 5 times or more.

   Standard:

   The difference between the target fuel pressure and the actual fuel pressure is less than 15000 kPa when the target fuel pressure reaches the maximum value approximately 2 seconds after the Active Test starts.
   

   
   

   Result 

   Result	Proceed to
   Difference between target fuel pressure and actual fuel pressure is 15000 kPa or more	A
   Difference between target fuel pressure and actual fuel pressure is less than 15000 kPa	B

B	Go to step 34

A

HINT:

If the common rail assembly has already been replaced in step 15, proceed to next step.

1. Replace the common rail assembly (Click here).
   

NEXT

1. Bleed air from fuel system (Click here).
   

NEXT	Go to step 34

1. Disconnect the suction control valve connector.
   

2. Disconnect the ECM connector.
   

3. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance (Check for Open):

   Tester Connection	Condition	Specified Condition
   B42-2 - B9-12 (PCV)	Always	Below 1 Ω

   Standard Resistance (Check for Short):

   Tester Connection	Condition	Specified Condition
   B42-2 or B9-12 (PCV) - Body ground	Always	10 kΩ or higher

4. Reconnect the suction control valve connector.
   

5. Reconnect the ECM connector.
   

NG	Go to step 33

OK

HINT:

If the supply pump assembly has already been replaced in step 12, proceed to next step.

1. Replace the supply pump assembly (Click here).
   

NEXT

1. Bleed air from fuel system (Click here).
   

NEXT	Go to step 34

NEXT

1. Connect the intelligent tester to the DLC3.
   

2. Clear the DTCs (Click here).
   

3. Turn the ignition switch off and wait for 30 seconds.
   

4. If the DTC P1272 is stored in the result of Step 1, perform the (A) to (C) confirmation driving pattern process. If the result of Step 1 is other than DTC P1272, perform the (D) to (F) confirmation driving pattern process.
   

5. Start the engine when the fuel temperature is 15°C (59°F) or less. (A)
   

6. Drive the vehicle in 2nd gear. (B)
   

7. Fully depress the accelerator pedal, and then fully release it from engine speed of 3000 rpm or more. (C)
   

8. Allow the engine to idle until the engine coolant temperature reaches 75°C (167°F) or more. (D)
   

9. Drive the vehicle in 2nd gear. (E)
   

10. Fully depress the accelerator pedal, and then fully release it from engine speed of 3000 rpm or more. (F)
    

11. Enter the following menus: Powertrain / Engine and ECT / DTC.
    

12. Confirm that the DTC is not output again.
    

    HINT:

    Perform the following procedure using the tester to determine whether or not the DTC judgment has been carried out.

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

    2. Input DTC P0087, P0088, P0191, P1229 or P1272.
       

    3. Check that STATUS is NORMAL. If STATUS is INCOMPLETE or UNKNOWN, repeat the confirmation driving pattern process.
       

NEXT
END