Go back to stock and see what happens at the dealership. Let Honda do their job. Let them figure out what REALLY happened. Nothing else you can do besides swap motors. Sorry to hear you threw a rod. That’s probably why original owner sold the Si. Abused it and knew it was gonna take a crap.
It was happening to me and I was getting code U0155(Instrument cluster connection failure). See what code pops up might be the same issue. Disconnect your Ktuner and see if the alerts go away. I had to order a replacement ODB2 cable from...
That's normal. Every time I remove my battery all alerts pop up but they disappear after driving around. Just hold the power button down on the head unit until it beeps and it should reboot.
Does it at 0:47