Diagnosis Procedure
- PERFORM LOW PRESSURE FUEL PUMP COMPONENT FUNCTION CHECK
Refer to "COMPONENT FUNCTION CHECK ".
Is the inspection result normal?
YES: GO TO 2.
NO: Perform low pressure fuel pump diagnosis. Refer to "DIAGNOSIS PROCEDURE ".
- CHECK FUEL LEAKAGE
- Start the engine.
- Visually check that the low fuel pressure system has no fuel leakage.
Is inspection result normal?
YES: GO TO 3.
NO: Repair or replace error-detected parts.
- CHECK LOW PRESSURE FUEL PIPING AND HOSE
- Turn ignition switch OFF.
- Check that the low pressure fuel piping and hose have no breakage, bend, and crush. Refer to
"INSPECTION
".
Is inspection result normal?
YES: Replace fuel level sensor unit and fuel pump (main) (fuel pressure regulator malfunction). Refer to "REMOVAL AND INSTALLATION ".
NO: Repair or replace error-detected parts.