Idles rough. No acceleration

It is unlikely that low voltage is causing this if the battery is new as a vehicle can run off a battery alone for a short time.

So, if this is running poorly then more than likely you have two issues. Sounds like it stalled or cut off and would not restart because you have an alternator issue that is not charging the system properly. So, let's start with checking the alternator and battery using these guides.

https://www.2carpros.com/articles/how-to-check-a-car-alternator

https://www.2carpros.com/articles/car-battery-load-test

Once we know the battery and alternator are charged and okay then we need to move onto a possible vacuum leak.

I suspect we have a vacuum leak that is causing the engine to run poorly and even stall.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

If there is no vacuum leak, then we need to move onto this guide and check for codes.

This guide will cover the most common issues causing poor running conditions so let's start with this and go from there. Thanks

https://www.2carpros.com/articles/stall-at-idle

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

Please let us know what you find with this. Thanks