I am soooo confused. I have been trying to run the diagnostics on my 1993 Deville. Upon pressing the off and warmer buttons I enter the diagnostics setting and shortly after some kind of .7 code comes up on my left fuel display. At this point everything sits like that until I get out of the diagnostics mode. Does this means that the diagnostics ran automatically and I dont have any issues? am I supposed to switch between diagnostics to run them? how do I actually "run" these tests once I enter that field? Also, and I dont mean to abuse my newby priveleges :bonkers: I am getting a lot of popping noises (electrical noises) whenever a press my break pedal or use raise or lower my windows when I first start the car. The noise usually dissapears shortly after; why could this be? I would really appreciate any feedback.