Baja F4-2.5L SOHC (2003)
this case is very small.
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The difference in oxygen concentration changes drastically in the vicinity of the stoichiometric air-fuel ratio, and hence the change in the
electromotive force is also large. By using this information, the ECM can determine the air-fuel ratio of the supplied mixture easily. The rear
oxygen sensor does not generate much electromotive force when the temperature is low. The output characteristics of the sensor stabilize at a
temperature of approximately 300 to 400 °C (572 to 752 °F).