Quote:
Originally Posted by Njjawn
I'm throwing a CEL for a Bank 1 O2 sensor. I checked it, its definitely plugged in. Code is P0031.
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P0031 - Oxygen
Sensor Heater Control Circuit Low (Bank 1 Sensor 1)
That's probably going to be a wiring issue or a new sensor needed.
Do you have an EcuTek cable? You can log all the primary O2 sensor info if needed to check and test.