I can tell you that code 538 is insufficient change in rpm,and code 411 is unable to to control rpm during low rpm self test,that being said that could be a multitude of things,IAC comes to mind,without more of a description than just the codes hard for anyone to even guess.
I can tell you that code 538 is insufficient change in rpm,and code 411 is unable to to control rpm during low rpm self test,that being said that could be a multitude of things,IAC comes to mind,without more of a description than just the codes hard for anyone to even guess.