Question about ECU (Auto & Manual)

I have been having problems with acceleration and some hesitation. I have a feeling that it might be the ECU. I have an AT ECU for my car. I can run this, right? If I remember right I will get a check engine light, but it is for something that is used on the AT only and will not interfere with engine function. Yea or nah?

You can change an auto to a manual the info is on this site

You got a link to that?

Oh and to answer you question, you can… but not if you need to take an emissions test haha because the CEL. and the CEL is just for egr, which was only on auto cars. That’s what I’m using, but I need to convert mine so it wont look for egr, so I can pass emissions haha.