Repair Procedures: Removal

WARNING: In case of removing the high pressure fuel pump, high pressure fuel pipe, delivery pipe, and injector, there may be injury caused by leakage of the high pressure fuel. So don't do any repair work right after engine stops.

Turn the ignition switch OFF and disconnect the battery negative (-) cable.
Release the residual pressure in fuel line (Refer to "RELEASE RESIDUAL PRESSURE IN FUEL LINE " ).
CAUTION: When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur.
Delete the code with the GDS after completion of "RELEASE RESIDUAL PRESSURE IN FUEL LINE " work.
Remove the air cleaner and the air intake hose (Refer to INTAKE AND EXHAUST SYSTEM ).
Disconnect the fuel pressure regulator valve connector (A).
Disconnect the fuel feed tube quick-connector (B) with a clip removing tool.

Fig 1: Identifying Fuel Pressure Regulator Valve Connector And Fuel Feed Tube Quick-Connector
Courtesy of HYUNDAI MOTOR AMERICA

NOTE: Open the clamp cover (A) before disconnecting the quick-connector. (If the clip is applied)

Fig 2: Identifying Clamp Cover On Fuel Pressure Regulator
Courtesy of HYUNDAI MOTOR AMERICA

CAUTION: When removing the quick-connnector with the clip removing tool (A), be careful not to damage the plastic clip (B). If the clip is damaged, fuel line leak can be occurred due to a bad connection.

Fig 3: Identifying Clip Remover Tool And Plastic Clip
Courtesy of HYUNDAI MOTOR AMERICA
Remove the high pressure fuel pipe.
1. Remove the installation nut (A) from the high pressure fuel pump with the special service tool [SST No.: 09314-3Q100 or 09314-27130]
  
  Fig 4: Identifying Special Service Tool
  Courtesy of HYUNDAI MOTOR AMERICA
2. Remove the installation nut (B) from the delivery pipe with the special service tool [SST No.: 09314-3Q100 or 09314-27130]
  
  Fig 5: Identifying Fuel Delivery Pipe Installation Nuts
  Courtesy of HYUNDAI MOTOR AMERICA
3. Disconnect the engine coolant temperature sensor connector.
4. Remove the function block (C), and then remove the high pressure fuel pipe.
  
  Fig 6: Identifying High Pressure Fuel Pipe Function Block
  Courtesy of HYUNDAI MOTOR AMERICA
Remove the installation bolts (D), and then remove the high pressure fuel pump from the cylinder head assembly.
CAUTION: Unscrew in turn the two bolts in small step (0.5 turns). In case of fully unscrewing one of the two bolts with the other bolt installed, the housing surface of the cylinder head may be broken because of tension of the pump spring.

Fig 7: Identifying High Pressure Fuel Pump Installation Bolts
Courtesy of HYUNDAI MOTOR AMERICA