D21 Hardbody XE 4WD L4-2389cc 2.4L SOHC MFI (KA24E) (1997)
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Oxygen Sensor: Description and Operation
DTC P0141 Rear HO2S Heater
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the rear heated oxygen sensor heater corresponding to the engine speed.
OPERATION
Engine speed rpm / Rear heated oxygen sensor
Above 6,000 / OFF
Below 6,000 / ON
