Diagnosis Procedure

1.CHECK DTC PRIORITY

If DTC P0087 is displayed with DTC P0090, first perform the confirmation procedure for DTC P0090.

Is applicable DTC detected?

Perform diagnosis of applicable. DTC Description

2.CHECK LOW FUEL PRESSURE

Check low fuel pressure. Refer to Work ProcedureWork Flow

Is inspection result normal?

Check low fuel pressure system. Refer to Diagnosis ProcedureDTC Diagnosis Procedure

3.CHECK HIGH PRESSURE FUEL PUMP

Check high pressure fuel pump. Refer to Component Inspection

Is inspection result normal?

Replace error-detected parts.

4.CHECK FUEL LEAKAGE

Start the engine.
Visually check that the fuel pump, fuel rail, and fuel piping have no fuel leakage.

Is inspection result normal?

Check that the fuel system has no breakage, bend, and crush. Refer to InspectionInspection

Replace or replace the error-detected parts.