P0138/P0144/P0158/P0164 O2 Sensor Circuit High Voltage
If using an
iO2SS
in stand-alone mode, adjust the offset potentiometer (OFF) to remove voltage offset to the signal.
If using an
iO2SS
in piggy-back mode, your oxygen sensor may be damaged. Consider using the
iO2SS
in stand-alone mode instead.
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