DTC P0088: Fuel Rail / System Pressure - Too High: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Enter the following menus: Powertrain / Engine / Trouble Codes.
4. Read the DTCs.

   Result

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

   HINT: 

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

B → See step   6 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Start the engine and turn the Techstream on.
3. Enter the following menus: Powertrain / Engine / Active Test / Control the Target Fuel Press / Fuel Press.
4. Check that the fuel pressure fluctuates when the target fuel pressure changes.

   HINT: 

   The Active Test operation lowers the target fuel pressure by 12.5% or increase the target fuel pressure by 24.8%.

   OK

   Fuel pressure fluctuates.

NG → See step   7 

OK: Go to next step 

1. Replace the fuel pump assembly (for high pressure). Refer to REMOVAL [08/2012 - ] .

NEXT: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the Techstream on.
3. Clear the DTCs. Refer to DTC CHECK / CLEAR [08/2012 - ] .
4. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
5. Enter the following menus: Powertrain / Engine / Trouble Codes.
6. Read the DTCs.

   Result

   Result	Proceed to
   DTC P0088 is output	A
   DTC is not output	B

B → END 

A → See step   5