Engine idles but does not rev up

Is the check engine light on? it sounds like the throttle body is not plugged in or it needs to be serviced. this guide can help:

https://www.2carpros.com/articles/throttle-actuator-service

and

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

Let us know what happens and please upload pictures or videos of the problem.