What are the odds of all four heater circuits failing? 129,000 miles
Car Scanner ELM OBD2
DTC report
Selected brand: Mercury
============1==============
P0053
Raw code: 0053
ECU: Engine control unit
Status: Confirmed
OBDII: Heated oxygen sensor (HO2S), bank 1, sensor 1 - heater resistance
============2==============
P0054
Raw code: 0054
ECU: Engine control unit
Status: Confirmed
OBDII: Heated oxygen sensor (HO2S), bank 1, sensor 2 - heater resistance
============3==============
P0059
Raw code: 0059
ECU: Engine control unit
Status: Confirmed
OBDII: Heated oxygen sensor (HO2S), bank 2, sensor 1 - heater resistance
============4==============
P0060
Raw code: 0060
ECU: Engine control unit
Status: Confirmed
OBDII: Heated oxygen sensor (HO2S), bank 2, sensor 2 - heater resistance
============5==============
P0403
Raw code: 0403
ECU: Engine control unit
Status: Confirmed
OBDII: Exhaust gas recirculation (EGR) - circuit malfunction
============6==============
P0443
Raw code: 0443
ECU: Engine control unit
Status: Confirmed
OBDII: Evaporative emission (EVAP) canister purge valve - circuit malfunction
highly unlikely that all four 02's heaters will fail...look for circuit problems not powering up the o2's in a plug in or other plug-ins. Look at a circuit diagram and check for proper voltage...or even bad ground that would affect all four o2's.
I did use quite a bit of e85 during 2018
Extremely likely if this was a flooded vehicle from a hurricane.
Not flooded but I have had raccoons get in the engine bay and tear stuff up
It seems you should replace all the oxygen sensors.
I think I will replace one of them and see if one of the errors goes away. If it doesn't then I will look into circuit problems