You need to check the symptoms decreased engine performance and increased fuel consumption to know the cause of the engine problem of the engine P0363 Code. The problem may connected with the several causes and you should know all of those causes of the car engine problem. Due to the code, these problems damaged or contaminated spark plug, fuel injector failure, ignition coil failure, internal engine failure and powertrain Control Module (PCM) software needs to be updated may started. That is why, verification the car engine is very important and take step for solving the car engine problem. Fix the car engine according to right manner.