Hi,
Honestly, I doubt the crank sensor is causing that. Have you checked fuel pressure? Have you checked for engine vacuum leaks? Have you checked to see if there are any diagnostic trouble codes stored in the system?
What you described can be caused by a few different things. A weak fuel pump, partially plugged catalytic converter, engine vacuum leaks, faulty coolant temperature sensor and so on.
If you haven't already, check to see if there are any stored diagnostic trouble codes. Here is a quick video showing how it's done:
https://youtu.be/b2IJGfImVvw
Most parts stores will scan it free of charge, so I recommend having that done.
If you are unable to, let me know. We will need to check one thing at a time.
Let me know and don't worry, we'll figure it out together.
Joe
Tuesday, December 22nd, 2020 AT 8:48 PM