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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 749 (FUEL SYSTEM)FUEL INJECTOR ASSY (3MZ-FE)REPLACEMENT

2004 Toyota Matrix XR, FWD, Standard

Fuel Injector ASSY (3MZ-FE): Replacement

2004 Toyota Matrix XR, FWD, StandardSECTION Replacement

WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.

DISCHARGE FUEL SYSTEM PRESSURE (See FUEL SYSTEM (3MZ-FE) )
DISCONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL)
DRAIN ENGINE COOLANT (See ENGINE COOLANT (3MZ-FE) )
REMOVE FRONT SUSPENSION UPPER BRACE CENTER (W/O TEMS) (See REPLACEMENT )
REMOVE V-BANK COVER SUB-ASSY (See REPLACEMENT )
REMOVE AIR CLEANER CAP SUB-ASSY (See REPLACEMENT )
REMOVE EMISSION CONTROL VALVE SET
1. Disconnect the 2 VSV connectors.
2. Remove the wire harness clamp.
  
  Fig 1: Disconnecting VSV Connectors
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Disconnect the fuel vapor feed hose No. 1.
4. Disconnect the fuel vapor feed hose No. 2.
5. Disconnect the 2 vacuum hoses.
6. Remove the clamp.
7. Remove the 2 nuts, then remove the emission control valve set.
  
  Fig 2: Removing Emission Control Valve Set
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE INTAKE AIR SURGE TANK
1. Disconnect the throttle motor connector.
2. Disconnect the water by-pass hose No. 3.
3. Disconnect the water by-pass hose No. 2.
4. Disconnect the union to check valve hose.
  
  Fig 3: Disconnecting Throttle Motor Connector, Water By-Pass Hoses & Check Valve Hose
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Disconnect the ventilation hose.
  
  Fig 4: Disconnecting Ventilation Hose
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Remove the 2 nuts, then remove the pressure feed tube.
  
  Fig 5: Removing Pressure Feed Tube Nuts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
7. Remove the 2 bolts, then remove the engine hunger No. 1.
8. Remove the 2 bolts, then remove the surge tank stay No. 1.
9. Remove the 2 bolts, then remove the surge tank stay No. 2.
  
  Fig 6: Removing Engine Hunger & Surge Tank Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
10. Disconnect the bond cable No. 1 connector.
11. Using a socket hexagon wrench 8, remove the 4 bolts.
12. Remove the 2 nuts, then remove the emission control valve bracket and intake air surge tank.
13. Remove the gasket from the intake air surge tank.
  
  Fig 7: Removing Bond Cable Connector, Bolts, Emission Control Valve Bracket And Intake Air Surge Tank
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
SEPARATE FUEL PIPE SUB-ASSY NO.1
1. Remove the fuel pressure pulsation damper and 2 gaskets.
2. Remove the fuel pipe No. 2 union bolt and 2 gaskets.
3. Remove the bolt, then separate the fuel pipe No. 1.
  
  Fig 8: Removing Fuel Pressure Pulsation Damper, Gaskets & Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE FUEL INJECTOR ASSY
1. Disconnect the 6 fuel injector connectors.
  
  Fig 9: Disconnecting Fuel Injector Connectors
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the 4 bolts, then remove the 2 fuel delivery pipes together with the 6 fuel injectors.
  NOTE: Be careful not to drop the fuel injectors when removing the fuel delivery pipe.