Hey, I've had some problems with my '13 MR as of recently. I was stopped at a stoplight and the car revved up to 3k rpm. I didnt think much of it and kept driving. I pulled into my driveway, where the car proceeded to shoot up to 3k rpm, then went down to about 500 rpm, back up to 3k, down to 500, and stalled. This has happened everytime I've started the car since. I've checked the vacuum lines and they all seem to be in good shape. Does anyone have any advice on the issue?