Noted surge and bucking

Hello,

It sounds like it could be misfiring. Can we run the codes to see what comes up? Here is a guide:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run down this guide and report back.

Cheers, Ken

I would start with a good OEM part tune up and service the throttle bore as well. Here are two guides that will help you get started:
https://www.2carpros.com/articles/how-to-tune-up-a-car-engine

and

https://www.2carpros.com/articles/engine-hesitates

Please run down these guides and report back.

Cheers, Ken

Please do :)

It would through a code if the sensor was causing problems. It sounds like the MAP or clogged fuel filter. If the MAP becomes weak it will give a false reading to the computer without setting a code. Here are the locations for both below with a guide to walk you through the filter change:

https://www.2carpros.com/articles/how-to-change-a-fuel-filter

Check out the diagrams (below). Please let us know what happens.

Please let us know what you find. We are interested to see what it is.

Yes, the transmission does hold the engine to the car when decelerating. Have you serviced the transmission recently? If not here is a guide to help walk you through the steps:

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Can you please shoot a quick video with your phone so we can see what it is doing? that would be great. You can upload it here with your response.