Failure codes

Hello friends I need help with the following:
I have a sorento 2002,2,5Diesel, mechanics, 4x4,. I start as lazy at any time of the day, cold or hot, it always tells me the idle at 1200rpm. In cold or hot and also the fuel indicator needle stays in a vacuum, that is not indicated. He said the scanner and nothing else. If anyone knows about these failures, I would appreciate it very much. Thank you very much, total!

Hello, I recently have problems with the fault codes of a Kia Sportage 94, I realized that you had the same problem a few years ago, could you get a list codes? I would thank you very much my email is