I get a random CEL whenever I’m driving. When I turn the car off the CEL goes away. The car seems to run normal when the light kicks on so I checked the CEL code and got a code 47. I also did a search for the ECU trouble code list and found that theres nothing listed under CEL 47. i understand some of the codes arent entered in the list because of california cars and certain models. If it helps I have a california car and it’s a LS. Can anyone tell me what a 47 is supposed to be?