First you need to go over all connections and make sure you don't have any sensors or connectors for the ECM still unplugged. That happens frequently so I would just check them.
Next, we need to check for codes because that is going to give us an idea on any open circuits.
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
Basically, just replacing the clutch is not going to cause this issue which means we more than likely are missing something that you took apart and it didn't completely go back together.
As for the clutch operation, what are all the components you replaced? Did you just do the clutch, or did you replace the master and slave cylinder as well?
Also, have you bled the clutch as shown below? Please run through this info and let us know what codes are there and everything you replaced, and we can go from there?
Thanks
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Monday, November 1st, 2021 AT 12:00 PM