2007 Classic, Ive owned for 2 years and normally runs around 1000 and today it spikes to 2200 before I could get pulled over. I killed engine and waited 20 minutes and started it back up and it was back to normal and I continued home. It never spiked again. Its has EFI live and EGR delete, I wasn't pulling anything or driving any other way than normal. Any thoughts?