P0137/P0143/P0157/P0163 O2 Sensor Circuit Low Voltage
If using an
iO2SS
in manual (signal generation) mode, set DIP switch #3 to ON.
If using an
iO2SS
in automatic (signal augmentation) mode, your oxygen sensor may be damaged. Consider using the
iO2SS
in manual (signal generation) mode instead.
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