DTC P0087-00: Fuel Rail / System Pressure - Too Low [11/2021 - 03/2022]: Procedure

1. 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

1. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTC P0087-00 is output	A
   DTC P0087-00 and other DTCs are output	B

   HINT: 

   If any DTCs other than P0087-00 are output, troubleshoot those DTCs first.

Result: 

B 

GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2021 - 03/2022] 

Result: 

A 

See step  3

1. Has the vehicle run out of fuel in the past?

   Result

   Proceed to
   YES
   NO

Result: 

YES 

DTC CAUSED BY RUNNING OUT OF FUEL 

Result: 

NO 

See step  4

1. Using the GTS, confirm the vehicle conditions recorded in the Freeze Frame Data which were present when the DTC was stored.

   HINT: 

   • Check the Freeze Frame Data sets recorded the moment the DTC was stored and after the DTC was stored.
   • Using the Freeze Frame Data, confirm the vehicle conditions when the DTC was stored, such as if the engine was idling with the shift state P, D or N or if the vehicle was being driven at a constant speed or accelerating.

   Powertrain > Engine > DTC (P0087-00) > Freeze Frame Data 

   Tester Display
   Target Fuel Pressure (Low) / Target Fuel Pressure 2
   Low Fuel Pressure Sensor

2. Compare the difference in pressure between "Target Fuel Pressure (Low) / Target Fuel Pressure 2 and Low Fuel Pressure Sensor".

   Result

   Result	Proceed to
   Difference between Target Fuel Pressure (Low) / Target Fuel Pressure 2 and Low Fuel Pressure Sensor is within 200 kPa	A
   Difference between Target Fuel Pressure (Low) / Target Fuel Pressure 2 and Low Fuel Pressure Sensor is more than 200 kPa	B

Result: 

B 

GO TO FUEL PUMP CONTROL CIRCUIT. Refer to  Fuel Pump Control Circuit [11/2021 - ] 

Result: 

A 

See step  5

1. Put the engine in Inspection Mode (Maintenance Mode).

   Powertrain > Hybrid Control > Utility 

   Tester Display
   Inspection Mode

2. Start the engine and warm it up until the engine coolant temperature reaches 80°C (176°F) or higher.

   Powertrain > Engine > Data List 

   Tester Display
   Coolant Temperature

3. According to the display on the GTS, read the Data List with the Active Test "Control the Injection Mode" set to Direct.

   Powertrain > Engine > Active Test 

   Active Test Display
   Control the Injection Mode

   Data List Display
   Injection Mode
   Misfire Count Cylinder #1
   Misfire Count Cylinder #2
   Misfire Count Cylinder #3
   Misfire Count Cylinder #4

   Result

   Injection Mode	Misfire Count	Proceed to
   Direct	There are no misfire counts	A
   	3 cylinders or more have misfire counts
   	1 or 2 cylinders have misfire counts	B

   HINT: 

   Perform "Inspection After Repair" after replacing the direct fuel injector assembly.

   Refer to INITIALIZATION [11/2021 - ]

Result: 

B 

REPLACE DIRECT FUEL INJECTOR ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

Result: 

A 

See step  6

1. Put the engine in Inspection Mode (Maintenance Mode).

   Powertrain > Hybrid Control > Utility 

   Tester Display
   Inspection Mode

2. Start the engine.
3. Check that the fuel pressure fluctuates when the engine condition changes from idling to racing.

   Powertrain > Engine > Data List 

   Tester Display
   Fuel Pressure (High)

   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 [11/2021 - ]

Result: 

B 

REPLACE FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE). Refer to  REMOVAL [11/2021 - ] 

Result: 

C 

See step  9

Result: 

A 

See step  7

Refer to PROCEDURE - Step 1

HINT: 

Perform "Inspection After Repair" after replacing the fuel pump (for low pressure side).

Refer to INITIALIZATION [11/2021 - ]

Result

Result: 

NG 

GO TO FUEL PUMP CONTROL CIRCUIT. Refer to  Fuel Pump Control Circuit [11/2021 - ] 

Result: 

OK 

See step  8

Refer to PROCEDURE - Step 2

Result

Result: 

NG 

REPAIR OR REPLACE FUEL SYSTEM 

Result: 

OK 

See step  9

Refer to REMOVAL [11/2021 - ]

HINT: 

Perform "Inspection After Repair" after replacing the fuel (engine room side) pump assembly (for high pressure side).

Refer to INITIALIZATION [11/2021 - ]

Result

Result: 

NEXT 

See step  10

1. Clear the DTCs.

   Powertrain > Engine > Clear DTCs 

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

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  11

1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
2. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTC P0087-00 is output	B

Result: 

A 

END 

Result: 

B 

REPLACE ECM. Refer to  REMOVAL [11/2021 - ]