Loyale Sedan (4 Door) 4WD F4-1781cc 1.8L SOHC Turbo (1990)
_4wd/f4-1781cc_1.8l_sohc_turbo/Page-258001.png)
Oxygen Sensor: Description and Operation
O2 Heater (CA. Only)
PURPOSE
To heat the O2 sensor.
LOCATION
An integral part of the O2 sensor.
OPERATION
The O2 sensor does not operate until a certain temperature is reached. The heater warms the sensor up faster than if it had to rely simply on
exhaust gas heat. The MPFI system then controls the A/F mixture sooner, reducing exhaust emissions.
