burnt vape

hello, I've been vaping since December 2015. My first mod was eGo one, I liked it but I wanted something with RBA so I bought a Kangertech mod. Everything was awesome for at least 8 weeks. Then I started to get burnt hits, I changed the coil, changed the juice, tried to add a VG, still tasted...

So like the title says, I'm new to this, I started vaping a week ago, and up until today, all has been good. For the past 10+ years me and my girlfriend have been 1-2 pack a day smokers. I've had 6 cigarettes in the past week thanks to this magic pen... but all is not good, I have no cigs, I...