Wen I was on the highway my car (manual) just started lurching whenever I would either step on the gas or let off of it. But when I got the car over 85 it would stop for a bit. Then the check engine light turned on after this jab been going on for about a half an hour.
I then shut if off for about an hour and when I started to drive it, every time I would put it in neutral at a stoplight the engine would rev to about 4000 then back and forth to 1000 until I started driving again. The lurching continued even at low speeds such as 35.
I then turned it off for about 2 hours and the engine got cold and the check engine light was off and the symptoms stopped.
That's where I'm at now!
If someone could help that would be great!