Help With DSM link log , Overheating and Fans

[GST98BIG16G]

My log , idk but the car does not pull properly at all. Its all messed up , i do have a really small boost leak on the TB spring. But i dont think thats it , backfires like a mofo. And also how do i setup the fans so they would turn on earlyer than stock.
The car overheats until i crank up the heat to the max and fans on high. I changed thermostat to 155 one it was fine for couple of months but now its acting weird...
Please help me out guys ! I KNOW ITS ALL BAD I JUST LOGED ,

 

[1992awdlaser]

First of all, post a log. To turn on the fans click on ecu/logfile then click on miscellaneous. You will be able to click on fans there and it will make them run at all times.