Car misfiring or jerking

Welcome to 2CarPros.

Has the check engine light come back on? Also, you indicate it is rough at idle and in reverse. Have you confirmed there are no broken engine mounts?

Take a look through this link and let me know if it seems to mirror what you are experiencing.

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

Also, make sure there are no engine vacuum leaks. That can cause a rough idle.

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

Also, here are a few links that discuss engine mounts and what they can cause:

https://www.2carpros.com/articles/vibration-noise

https://www.2carpros.com/articles/how-a-motor-mount-works

https://www.2carpros.com/articles/replace-motor-mounts

Let me know if any of those links help. If you find a broken mount or need directions on a specific component, let me know. Also, let me know if you have any questions.

Take care,
Joe