My civic has a rough idle, the shift piont between 2nd and 3rd seems to be weird, and is starting to start hard. The other day it almost left me stranded. I have to keep turning the key to the off position and trying to start it that way. I am thinking it is the ecu that is the problem. Can someone help me?

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https://www.askmehelpdesk.com/cars-trucks/automotive-repair-maintenance-troubleshooting-frequently-asked-questions-46563.html