Diagnostic Test

1. Start the engine, and let the engine run at idle at least for 10 minutes.
2. Perform DTC confirmation procedure of DTC P0087.

Is 1st trip DTC detected?

YES 

GO TO STEP 2  .

NO 

GO TO STEP  6.

Check low fuel pressure. Refer to WORK PROCEDURE .

Is inspection result normal?

YES 

GO TO STEP 3  .

NO 

Check low fuel pressure system. Refer to DIAGNOSIS PROCEDURE .

1. Turn ignition switch OFF.
2. Turn ignition switch ON.
3. Check the following value 30 minutes after turning the ignition switch ON.

   Low fuel pressure

   : 206 kPa (2.1 bar, 2.2 kgf/cm2, 30 psi) or more

Is inspection result normal?

YES 

GO TO STEP 4  .

NO 

Replace low pressure fuel pump. Refer to EXPLODED VIEW WITH TORQUE SPECIFICATIONS .

Check high pressure fuel pump. Refer to COMPONENT INSPECTION (HIGH PRESSURE FUEL PUMP) .

Is inspection result normal?

YES 

GO TO STEP 5  .

NO 

Repair or replace the error-detected parts.

Check lifter. Refer to REMOVAL AND INSTALLATION .

Does the lifter top surface have scratches and/or dents?

YES 

Replace the error-detected parts.

NO 

Check intermittent incident. Refer to INTERMITTENT INCIDENT .

1. Turn ignition switch OFF.
2. Connect fuel pressure gauge. Refer to WORK PROCEDURE .
3. Turn ignition switch ON.
4. Check the following value 30 minutes after turning the ignition switch ON.

   Low fuel pressure

   : 206 kPa (2.1 bar, 2.2 kgf/cm2, 30 psi) or more

Is inspection result normal?

YES 

Check intermittent incident. Refer to INTERMITTENT INCIDENT .

NO 

Replace low pressure fuel pump. Refer to EXPLODED VIEW WITH TORQUE SPECIFICATIONS .