overheating

Backstory: Lately I've been seeing weird fluctuations in my ECTs which prompted me to replace my ECT sensor. Once that was replaced I thought all was fine until one night I noticed my coolant temps drop to 150-160 and then in the drive through after some time had passed they soared up to 244...

Just bought my first speed about two weeks ago so Im sorry if I come off noobish in this post Year/Make/Model: 2008 Mazdaspeed 3 Mileage: 123000 Location/Alitutude: Meridian, ID (2,605' sea level) Concern: Misfire on cyl 3. Weird idle during startup. Overheats and burning electrical smell (might...

So I bought my speed3 back in february and it was already burning oil, I thought it was the turbo so I swapped it for a used ko4 and I still got the same problem. I pushed it off the to the side but I've been noticing that my coolant is getting really hot, with it getting up to around 220 F on...