So today I drove my car about 2 miles before it didn't want to accelerate and a check engine came on. I pulled over and used my obd2 scanner and says it's a P0335 pending code. I drove the car home 20 miles after and it drove there without any problems. Slight stutter but it might be in my head cause I was a nervous reck driving in the rain after that happening. What should I do?!

 

That's a crankshaft sensor code. I'd get it checked out, because it can leave you stranded if it's a real problem.

If you some time and multi-meter you can do it yourself.

 

Since you got a trouble code search this forum for how to address it and fix the issue. Lots of good info here.