Delivery Pipe Repair Procedures

Removal

When removing the high-pressure fuel pump, high-pressure fuel line, delivery pipe, or injector, injury may occur due to high-pressure fuel leakage. Do not perform repair work immediately after stopping the engine.

1. 1
   Turn the ignition switch OFF and disconnect the negative (-) battery cable.
2. 2
   Relieve the residual fuel pressure in the fuel line. (Refer to Fuel System – "Relieve Residual Fuel Pressure in Fuel Line")

   When the fuel pump relay is removed, a diagnostic trouble code (DTC) is set. Clear the DTC with GDS after completing the "Relieve Fuel Pressure" procedure.

3. 3
   Remove the intake manifold. (Refer to Engine Mechanical System - "Intake Manifold")
4. 4
   Disconnect the injector connectors (A) and the rail pressure sensor connector (B).
5. 5
   Remove the high-pressure fuel pipe (C).
6. 6
   Remove the engine oil pressure sensor.
7. 7
   Remove the mounting bolt (D), then remove the delivery pipe and injectors from the engine.

   

   

   

Installation

Do not reuse the injector retainer.

Do not reuse the support disc. Do not reuse the injector rubber washer. Do not reuse the combustion seal.

Install the component with the specified torque. Note that internal damage may occur if the component is dropped. In this case, inspect it before use.

Apply engine oil to the O-ring of the injector. Do not reuse the injector O-ring.

Do not reuse the bolt.

When inserting the injector, be careful not to damage the injector tip.

1. Install in the reverse order of removal. Delivery pipe mounting bolt: 18.6 ~ 24 N·m High-pressure fuel pipe nut: 26.5 ~ 32 N·m