DTC P0087: Fuel Rail / System Pressure - Too Low [11/2016 - ]: Procedure
- CHECK FUEL LEAK
- Check around and beneath the vehicle for fuel leaks, fumes, etc.
OK
No fuel leaks present.
Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE FUEL LEAK POINT
Result:
OK
See step 2
- Check around and beneath the vehicle for fuel leaks, fumes, etc.
- CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P0087)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG) and turn the Techstream on.
- Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
- Read the DTCs.
Powertrain > Engine and ECT > Trouble Codes
Result
Result Proceed to DTC P0087 is output A DTC P0087 and other DTCs are output B HINT:
If any DTCs other than P0087 are output, troubleshoot those DTCs first.
Result:
B
GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2016 - 10/2017] or DIAGNOSTIC TROUBLE CODE CHART [10/2017 - ]
Result:
A
See step 3
- CONFIRM IF VEHICLE HAS RUN OUT OF FUEL IN PAST
Result:
YES
DTC CAUSED BY RUNNING OUT OF FUEL
Result:
NO
See step 4
- CHECK MISFIRE COUNT OF DIRECT INJECTION
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG) and turn the Techstream on.
- Put the engine in inspection mode (maintenance mode).
Powertrain > Hybrid Control > Utility
Tester Display Inspection Mode - Start the engine and warm it up.
- Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Way / Data List / Injection Way and Cylinder #1 Misfire Count to Cylinder #6 Misfire Count.
Powertrain > Engine and ECT > Active Test
Active Test Display Control the Injection Way Data List Display Injection Way Cylinder #1 Misfire Count Cylinder #2 Misfire Count Cylinder #3 Misfire Count Cylinder #4 Misfire Count Cylinder #5 Misfire Count Cylinder #6 Misfire Count - According to the display on the Techstream, read the Data List with the Active Test "Control the Injection Way" set to Direct.
Result
Injection Way Misfire Count Proceed to Direct There are no misfire counts A 3 cylinders or more have misfire counts 1 or 2 cylinders misfire counts B HINT:
Perform "Inspection After Repair" after replacing the fuel injector assembly (for direct injection).
Refer to INITIALIZATION [11/2016 - ]
Result:
B
REPLACE FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION). Refer to REMOVAL [11/2016 - ]
Result:
A
See step 5
- CHECK FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG) and turn the Techstream on.
- Put the engine in inspection mode (maintenance mode).
Powertrain > Hybrid Control > Utility
Tester Display Inspection Mode - Start the engine.
- Enter the following menus: Powertrain / Engine and ECT / Data List / Fuel Press.
Powertrain > Engine and ECT > Data List
Tester Display Fuel Press - Check that the fuel pressure fluctuates when the engine condition changes from idling to racing.
Result
Result Proceed to Fuel pressure does not rise A Fuel pressure does not fluctuate B Fuel pressure fluctuates C HINT:
Perform "Inspection After Repair" after replacing the fuel pressure sensor (for high pressure side).
Refer to INITIALIZATION [11/2016 - ]
Result:
B
REPLACE FUEL DELIVERY PIPE WITH SENSOR ASSEMBLY LH (FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE)). Refer to REMOVAL [11/2016 - ]
Result:
C
See step 8
Result:
A
See step 6
- CHECK FUEL PUMP OPERATION (FOR LOW PRESSURE SIDE)
- Check the fuel pump operation (for low pressure side).
Refer to PROCEDURE - STEP 2
Result
Proceed to OK NG
Result:
NG
GO TO FUEL PUMP CONTROL CIRCUIT. Refer to FUEL PUMP CONTROL CIRCUIT [11/2016 - ]
Result:
OK
See step 7
- Check the fuel pump operation (for low pressure side).
- CHECK FUEL PRESSURE (FOR LOW PRESSURE SIDE)
- Check the fuel pressure (for low pressure side).
Refer to PROCEDURE - STEP 2
Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE FUEL SYSTEM
Result:
OK
See step 8
- Check the fuel pressure (for low pressure side).
- REPLACE INJECTOR DRIVER (EDU)
- Replace the injector driver (EDU).
Refer to REMOVAL [11/2016 - ]
NEXT
See step 9
- Replace the injector driver (EDU).
- CHECK IF DTC OUTPUT RECURS (SEE IF DTC P0087 IS OUTPUT AGAIN)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG) and turn the Techstream on.
- Clear the DTCs.
Powertrain > Engine and ECT > Clear DTCs
- Turn the power switch off and wait for at least 30 seconds.
- Turn the power switch on (IG) and turn the Techstream on.
- Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
- Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
- Read the DTCs.
Powertrain > Engine and ECT > Trouble Codes
Result
Result Proceed to DTC P0087 is output A DTCs are not output B
Result:
B
END
Result:
A
See step 10
- REPLACE FUEL PUMP ASSEMBLY (FOR HIGH PRESSURE SIDE)
- Replace the fuel pump assembly (for high pressure side).
Refer to REMOVAL [11/2016 - ]
HINT:
Perform "Inspection After Repair" after replacing the fuel pump assembly (for high pressure side).
Refer to INITIALIZATION [11/2016 - ]
NEXT
See step 11
- Replace the fuel pump assembly (for high pressure side).
- CHECK IF DTC OUTPUT RECURS (SEE IF DTC P0087 IS OUTPUT AGAIN)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG) and turn the Techstream on.
- Clear the DTCs.
Powertrain > Engine and ECT > Clear DTCs
- Turn the power switch off and wait for at least 30 seconds.
- Turn the power switch on (IG) and turn the Techstream on.
- Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
- Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
- Read the DTCs.
Powertrain > Engine and ECT > Trouble Codes
Result
Result Proceed to DTC P0087 is output A DTCs are not output B
Result:
A
REPLACE ECM. Refer to REMOVAL [11/2016 - ]
Result:
B
END