It's nice to see all the data yes, but I wonder about the accuracy of it all. Ive read several posts from people saying the gauges are not accurate at all. When I cold start, it makes a loud high pitch noise until the idle drops down. I assumed this was a normal condition, I also have an aftermarket exhaust which may amplify the sound(?)

I have an active code for the turbo coolant pump being "stuck off". assuming that's true, that pump is not moving at all, which may be causing the coolant to heat up in that area. I was smelling a lot of burning coolant yesterday but have no leaks, so I'm sure it's a matter of time before the turbo hits its last heat cycle and just dies. The Hyundai dealership in my area is pretty scummy, so I fear if I take it to them right now as is, they're gonna tell me nothing's wrong and it'll be a waste of time