Diagnosis Procedure
- CHECK DTC PRIORITY
If DTC P0087 is displayed with DTC P0090 or P1197, first perform the confirmation procedure (trouble diagnosis) for DTC P0090 or P1197.
Is DTC P0087 or P0090 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. Refer to DTC Description .
Is the DTC P0087 detected again?
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 fuel level sensor, fuel filter and fuel pump assembly. 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 Inspection .
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 fuel level sensor, fuel filter and fuel pump assembly. Refer to Removal and Installation .