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 MANUALSTOYOTA2005CELICA GT-S, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSSFI SYSTEMTHROTTLE BODY (1ZZ-FE)INSTALLATION

2005 Toyota Celica GT-S, Standard

Throttle Body (1ZZ-FE): Installation

2005 Toyota Celica GT-S, StandardSECTION Installation

INSTALL THROTTLE BODY
1. Install a new gasket on the intake manifold, as shown in Fig 1 .
  
  Fig 1: Installing New Gasket On Intake Manifold
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Install the throttle body with the 2 bolts and 2 nuts.
  Torque: 21 N.m (210 kgf.cm, 15 ft.lbf)
  
  Fig 2: Installing Throttle Body
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Connect the 2 water by-pass hoses to the throttle body.
  
  Fig 3: Connecting Water By-Pass Hoses To Throttle Body
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Install the No. 2 water by-pass pipe with the 2 bolts.
  
  Fig 4: Installing No. 2 Water By-Pass Pipe
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Connect the IAC valve connector.
  
  Fig 5: Connecting IAC Valve Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Connect the throttle position sensor connector.
7. Connect the PCV hose to throttle body.
INSTALL AIR CLEANER HOSE AND CAP WITH MAF METER
INSTALL NO. 2 CYLINDER HEAD COVER
FILL RADIATOR WITH ENGINE COOLANT

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.