Diagnosis Procedure
- CHECK DTC PRIORITY
If DTC P0087 is displayed with DTC P0090 and/or P1197, first perform the confirmation procedure (trouble diagnosis) for DTC P0090 and/or P1197.
Is applicable DTC detected?
YES
Perform diagnosis of applicable.
- DTC P0090: Refer to DTC Description .
- DTC P1197: Refer to DTC Description .
NO
GO TO 2.
- BLEED THE FUEL LINE
- Start the engine, and let the engine run at idle at least for 10 minutes.
- Perform DTC confirmation procedure of DTC P0087.
Is 1st trip DTC detected?
YES
GO TO 3.
NO
GO TO 7.
- CHECK LOW FUEL PRESSURE
Check low fuel pressure. Refer to Work Procedure .
Is inspection result normal?
YES
GO TO 4.
NO
Check low fuel pressure system. Refer to Work Procedure .
- CHECK LOW PRESSURE FUEL LINE FOR INTERNAL LEAKAGE
- Turn ignition switch OFF.
- Turn ignition switch ON.
- Check the following value 30 minutes after turning the ignition switch ON.
Low fuel pressure
: 206 kPa (2.2 kgf/cm 2 , 30 psi) or more
Is inspection result normal?
YES
GO TO 5.
NO
Replace low pressure fuel pump. Refer to Removal and Installation .
- CHECK HIGH PRESSURE FUEL PUMP
Check high pressure fuel pump. Refer to Component Inspection (High Pressure Fuel Pump) .
Is inspection result normal?
YES
GO TO 6.
NO
Repair or replace the error-detected parts.
- CHECK HIGH PRESSURE FUEL PUMP LIFTER
Check high pressure fuel pump lifter. Refer to Removal and Installation .
Does the lifter top surface have scratches and/or dents?
YES
Replace the error-detected parts.
NO
INSPECTION END
- CHECK LOW PRESSURE FUEL LINE FOR INTERNAL LEAKAGE
- Turn ignition switch OFF.
- Connect fuel pressure gauge. Refer to Work Procedure .
- Turn ignition switch ON.
- Check the following value 30 minutes after turning the ignition switch ON.
Low fuel pressure
: 206 kPa (2.2 kgf/cm 2 , 30 psi) or more
Is inspection result normal?
YES
INSPECTION END
NO
Replace low pressure fuel pump. Refer to Removal and Installation .