P2243 Buick Oxygen (O2) Sensor Reference Voltage Circuit / Open (Bank 1 – Sensor 1)

P2244 Buick Oxygen (O2) Sensor Reference Voltage Performance (Bank 1 – Sensor 1) OBD Code: System: Subsystem:  P2244 Buick – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Reference Voltage Performance (Bank 1 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 1 – Sensor 1     Tech description:…