High Pressure Fuel Pump Removal/Installation: Notes

WARNING:

• Highly pressurized fuel may spray out if the fuel line is cut. Due to the following dangers occurring with a fuel spray, always complete the "FUEL LINE SAFETY PROCEDURE " to prevent the fuel from spraying.
  • Fuel may cause irritation if it comes in contact with skin and eyes.
  • If fuel ignites and causes a fire, it may lead to serious injury or death, and damage to property and facilities.
• A person charged with static electricity could cause a fire or explosion, resulting in death or serious injury. Before draining fuel, make sure to discharge static electricity by touching the vehicle body.

CAUTION:

• Do not disassemble the high pressure fuel pump.
• Do not damage the sealing surface or the lock part of the fuel pipe.

  Courtesy of MAZDA MOTORS CORP.

• Damage or deformation to the end of the high pressure line pipe may cause fuel leakage.
• Disconnecting/connecting the quick release connector without cleaning it may cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting using a cloth or soft brush, and make sure that it is free of foreign material.

1. Complete the "BEFORE SERVICE PRECAUTION". (See BEFORE SERVICE PRECAUTION .)
2. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
3. Remove the seal cover. (See SEAL COVER REMOVAL/INSTALLATION .)
4. Remove the following parts:
   1. Wiper arm and blade (See WIPER ARM AND BLADE REMOVAL/INSTALLATION .)
   2. Cowl grille (See COWL GRILLE REMOVAL/INSTALLATION .)
   3. Air box complete (See AIR BOX COMPLETE REMOVAL/INSTALLATION .)
5. Remove in the order indicated in the table.
6. Install in the reverse order of removal.
7. Complete the "AFTER SERVICE PRECAUTION". (See AFTER SERVICE PRECAUTION .)
8. Complete the "Fuel Leakage Inspection After High Pressure Fuel Pump Installation". (See FUEL LEAKAGE INSPECTION AFTER HIGH PRESSURE FUEL PUMP INSTALLATION .)

Fig 1: High Pressure Fuel Pump Components Location With Torque Specification

Courtesy of MAZDA MOTORS CORP.

HIGH PRESSURE FUEL PUMP COMPONENT OPERATIONS

Component No.	Refer to
1	High pressure fuel pump connector
2	Exhaust CMP sensor connector
3	Harness clip
4	Protector
5	Quick release connector (See QUICK RELEASE CONNECTOR REMOVAL/INSTALLATION .)
6	Intake CMP sensor connector
7	High pressure fuel pipe (See HIGH PRESSURE FUEL PIPE REMOVAL NOTE .) (See HIGH PRESSURE FUEL PIPE INSTALLATION NOTE .)
8	High pressure fuel pump (See HIGH PRESSURE FUEL PUMP INSTALLATION NOTE .)
9	O-ring
10	Tension collar
11	Seal rubber
12	Rear housing (See REAR HOUSING REMOVAL NOTE .) (See REAR HOUSING INSTALLATION NOTE .)