Frontier 2WD V6-3.3L (VG33E) (2003)
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Oxygen Sensor: Description and Operation
System Description
Operation
HO2S1 HEATER
The ECM performs ON/OFF control of the heated oxygen sensor 1 heaters corresponding to the engine speed.
System Description
Operation
HO2S2 HEATER
The ECM performs ON/OFF control of the heated oxygen sensor 2 heaters corresponding to the engine speed.
