Ok. On way home from work this morning I was getting up to interstate speed and then the car just slowed. Check engine light came on. Then couldn't get over 55mph. I pulled over. Probably getting laughed at by fellow co-workers. I turned the car off. Waited 30 seconds. Turned it back on. Everything sounded fine. Buy check engine light was still on. I figured I only go 2 miles til my exit so I drove off. Accelerating easy, not knowing what to expect. Car got up to 55 then on up to 65. Everything seemed fine. I pulled over when I had the chance to open the hood and inspect. Everything looks good. Dropped the hood and cranked her up. Drove 10 miles home going 50-60mph. I'm hoping it's the limp mode deal I've read about. I'm gonna take it out tomorrow and see how it goes. I'm a mopar guy through and through but I swear I think I got a lemon. The car is a beast but it's like every 5000 miles some crazy stuff happens. I'll update as soon as I have more info. If it is limp mode, how will I know?