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dorsaiboxster · 06-17-2023, 05:52 PM

have a 2004 base Boxster, 130K miles ...

am getting a P0056 HO2S Heater Control Circuit and P0161 O2 Sensor Heater Circuit errors ...

have replaced O2 sensor twice ... no joy ...

could this be a wiring harness issue ?

Thanks

06-17-2023, 05:52 PM	#1
dorsaiboxster Registered User Join Date: Jun 2023 Location: Pennsylvania Posts: 5	O2 sensor issue have a 2004 base Boxster, 130K miles ... am getting a P0056 HO2S Heater Control Circuit and P0161 O2 Sensor Heater Circuit errors ... have replaced O2 sensor twice ... no joy ... could this be a wiring harness issue ? Thanks