The meaning of the engine code is necessary for solving the car engine problem and this engine P0085 Code is found online. Do not follow any meaning of the car engine code. You need to know the cause the problem and then try to fix the car engine problem. Those reasons are ECM not operating properly, Open or short in the wiring harness, Poor electrical connection and Bank 2 exhaust valve control solenoid failure. For solving the problem, you can try Replacing the ECM, Repairing or replacing the harness wiring, Replacing bank 2 exhaust valve control solenoid and Fix poor electrical connection.