DTC P0087: Fuel Rail / System Pressure - Too Low: Procedure

1. Check around and beneath the car for gasoline leaks, fumes, etc.

   OK

   No gasoline leaks present.

NG → REPAIR OR REPLACE FUEL LEAK POINT 

OK: Go to next step 

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

   Result

   Display (DTC output)	Proceed to
   P0087	A
   P0087 and other DTCs	B

B → See step   11 

A: Go to next step 

1. Check the fuel pressure. Refer to ON-VEHICLE INSPECTION .

NG → See step   16 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Start the engine.
4. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Way / Direct.
5. Allow the engine to idle.
6. Monitor all of the misfire rate values that are displayed on the tester: Powertrain / Engine / Data List / Misfire / Cylinder #1 Misfire rate to Cylinder #8 Misfire rate.

   If no misfire counts occur for any of the cylinders, perform the following procedure:

   1. Move the shift lever to the D position.
   2. Monitor all of the misfire rate values that are displayed on the tester.

      Result

      Misfire Count	Proceed to
      No misfire counts, or misfire counts occur randomly in all cylinders	A
      Misfire counts occur in particular cylinder	B

B → See step   12 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Start the engine.
4. Enter the following menus: Powertrain / Engine / Data List / All Data / Fuel Press.
5. Write down the FUEL PRESS (Fuel Press) value.
6. Turn the engine switch off.
7. Wait for 10 seconds.
8. Turn the engine switch on (IG) and turn the Techstream on.
9. Enter the following menus: Powertrain / Engine / Data List / All Data / Fuel Press.
10. Compare the FUEL PRESS (Fuel Press) value from and the fuel pressure value after the engine switch was turned on (IG).

    Result

    Inspection Result	Proceed to
    Fuel Press value drops	A
    Fuel Press value is maintained	B

B → See step   13 

A: Go to next step 

1. Check the fuel pressure. Refer to ON-VEHICLE INSPECTION - Step 3 .

NG → See step   10 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Replace the No. 1 and No. 2 injector drivers with new or normally functioning ones.
   Fig 1: Identifying Injector Driver No. 1 And No. 2

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   NOTE:

   Do not disconnect and reconnect the connectors with the engine switch on (IG), as the injector driver (EDU) may be damaged.

3. Clear the DTC. Refer to DTC CHECK / CLEAR .
4. Perform the driving test.
5. Enter the following menus: Powertrain / Engine / Trouble Codes.
6. Read the DTCs.
   RESULT
   
   

   Display (DTC output)	Proceed to
   P0087	A
   No output	B

B → See step   14 

A: Go to next step 

1. Replace the fuel pump (for high pressure of bank 1 and bank 2). Refer to REMOVAL .

NEXT: Go to next step 

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

   Result

   Display (DTC Output)	Proceed to
   P0087	A
   No output	B

B → END 

A → See step   15