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– Fuel injector– Intake air leaks Tech description If the P2A03 code is set after…