Toyota Corolla (E120): Diagnostics

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Evap monitor (vacuum pressure monitor)
Notice: a cold soak must be performed prior to conducting the drive pattern to complete the internal pressure readiness monitor. Cold soak preconditions The monitor will not run unless: mil is off. Fuel level is approximately 1/2 to 3/4. Altitude is 7800 feet (2400 m) or less. ...

Circuit description
The rear heated oxygen sensor is used to monitor oxygen concentration in the exhaust gas. For optimum catalytic converter operation, the air fuel mixture must be maintained near the ideal ”stoichiometric” ratio. The heated oxygen sensor output voltage changes suddenly in the vicinity of ...

Tire information
Typical tire symbols Full-size tire Tire size DOT and Tire Identification Number (TIN) Uniform tire quality grading For details, see "Uniform Tire Quality Grading" that follows. Location of treadwear indicators Tire ply composition and materials Plies are layers of rubber-coated parallel ...