Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSTOYOTA2004CELICA GT, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROL SYSTEMSSFI SYSTEMINJECTORINSTALLATION

2004 Toyota Celica GT, Standard

SFI System: Injector: Installation

2004 Toyota Celica GT, StandardSECTION Installation

INSTALL INJECTORS AND DELIVERY PIPES
1. Install the grommet to each injector.
2. Apply a light coat of spindle oil or gasoline to new O-ring and install them to each injector.
  
  Fig 1: Installing Grommet To Each Injector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Apply a light coat of spindle oil or gasoline on the place where a delivery pipe touches on O-ring.
4. While turning the injector clockwise and counterclockwise, push it to the delivery pipes. Install the 4 injectors.
5. Position the injector connector outward.
  
  Fig 2: While Turning Injector , Push It To Delivery Pipes
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Place the 2 spacers in position on the cylinder head.
7. Apply a light coat of spindle oil or gasoline on the place where a cylinder head touches an O-ring of the injector.
8. Place the delivery pipe and fuel pipe together with the injectors in position on the cylinder head.
  
  Fig 3: Placing Spacers In Position On Cylinder Head
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
9. Temporarily install the 2 bolts holding the delivery pipe to the cylinder head.
10. Temporarily install the bolt holding the fuel pipe to the cylinder head.
  
  Fig 4: Temporarily Install Bolts Holding Delivery Pipe To Cylinder Head
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
11. Check that the injectors rotate smoothly.
  
  Fig 5: Checking Injectors Rotate Smoothly
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If injectors do not rotate smoothly, the probable cause is incorrect installation of O-ring. Replace the O-ring.
12. Position the injector connector outward.
13. Tighten the 2 bolts holding the delivery pipe to the cylinder head.
  Torque:
  - 1ZZ-FE: 19 N.m (190 kgf.cm, 14 ft.lbf)
  - 2ZZ-GE: 29 N.m (290 kgf.cm, 21 ft.lbf)
14. Tighten the bolt holding the fuel pipe to the cylinder head.
  - Torque: 9 N.m (92 kgf.cm, 7 ft.lbf)
Fig 6: Tightening Bolt Holding Fuel Pipe To Cylinder Head
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CONNECT FUEL TUBE
1. Connect the fuel tube (fuel tube connector) to the fuel pipe.
  
  Fig 7: Connecting Fuel Tube (Fuel Tube Connector) To Fuel Pipe
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.