Know the detail of the engine P0392 Code and solve the engine problem. The trouble code has some symptoms what you need to analysis to know the cause of the car engine problem. The engine problem has some symptoms what are linked with the above code. Those symptoms are decreased engine performance, engine may not start and increased fuel consumption. Some common problems are Broken tone ring, camshaft Position Sensor (CMP) failure, Powertrain Control Module (PCM) failure and Wiring issue. You should not drive the car with the car engine problem. You smut take necessary step for solving the car engine.