I’m currently having the same issue with my car. I’ve had the battery replaced, the dealership found a spliced wire in the control panel and replaced that. We’ve also replaced the fuel pump. Today, the gas pedal stopped working WHILE WE WERE DRIVING! Of course, after pulling over and waiting a couple minutes, it started back up and was fine. Have you found a solution to your problem yet or are you still experiencing the intermittent start up issues?