DTC P0088-00: Fuel Rail / System Pressure - Too High [09/2022 - ]: Procedure

1. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   P0088-00 is output	A
   P0088-00 and other DTCs are output	B

   HINT: 

   If any DTCs other than P0088-00 are output, troubleshoot those DTCs first.

Result: 

B 

GO TO DTC CHART 

Result: 

A 

See step  2

1. Start the engine.
2. Enter the following menus.

   Powertrain > Engine > Data List 

   Tester Display
   Fuel Pressure (High)

3. According to the display on the GTS, read the Data List while racing the engine.

   OK

   Fuel pressure fluctuates.

   Result

   Proceed to
   OK
   NG

   HINT: 

   Perform "Inspection After Repair" after replacing the fuel pressure sensor (for high pressure side).

   Refer to INITIALIZATION [09/2022 - ]

Result: 

NG 

REPLACE FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE) 

Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - ]

Result: 

OK 

See step  3

Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - ]

HINT: 

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

Refer to INITIALIZATION [09/2022 - ]

Result

Result: 

NEXT 

See step  4

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  5

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
   P0088-00 is output	B

Result: 

A 

END 

Result: 

B 

REPLACE ECM 

Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - 09/2024] , or refer to REMOVAL [09/2024 - ]