P2A03 Buick Oxygen (O2) Sensor Circuit Range / Performance (Bank 2 – Sensor 1)

P2A04 Buick Oxygen (O2) Sensor Circuit Range / Performance (Bank 2 – Sensor 2) OBD Code: System: Subsystem:  P2A04 Buick – (ASE)  Powertrain  — Trouble Code Description: Oxygen (O2) Sensor Circuit Range / Performance (Bank 2 – Sensor 2) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 2 – Sensor 2  Out of Expected Range  …

P2A03 BMW Oxygen (O2) Sensor Circuit Range / Performance (Bank 2 – Sensor 1)

P2A03 BMW Oxygen (O2) Sensor Circuit Range / Performance (Bank 2 – Sensor 1) Possible causes – Air Fuel Ratio (A/F) Sensor Bank 2 Sensor 1– Air Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 harness is open or shorted– Air Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 circuit poor electrical connection– Fuel pressure–…

P2A03 Audi Oxygen (O2) Sensor Circuit Range / Performance (Bank 2 – Sensor 1)

P2A03 Audi Oxygen (O2) Sensor Circuit Range / Performance (Bank 2 – Sensor 1) Possible causes – Air Fuel Ratio (A/F) Sensor Bank 2 Sensor 1– Air Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 harness is open or shorted– Air Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 circuit poor electrical connection– Fuel pressure–…