Toyota Corolla (E120) 2002–2008 Repair Manual / Introduction / Repair instruction / Precaution / Removal and installation of engine intake parts
Toyota Corolla (E120): Removal and installation of engine intake parts

- If any metal tip is mixed in the inlet pass, this may give a bad effect to the engine and turbocharger.
- when removing and installing the inlet system parts, close the opening of the removed inlet system parts and the engine with a clean shop rag or gummed tape.
- when installing the inlet system parts, check that there is no mixing of a metal tip.
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Circuit description
The rear heated oxygen sensor is used to monitor oxygen concentration in the
exhaust gas. For optimum
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ideal ”stoichiometric” ratio.
The heated oxygen sensor output voltage changes suddenly in the vicinity of ...
Circuit description
The airbag sensor front lh circuit consists of the airbag sensor assy center
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Wiring diagram
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Components
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