I just finished the install on the blower. Its an 03 svt. Steeda short ram intake. Jackson racings black box tuning. The car is currently sputtering in the top end of any gear. Basically anytime i get over like 3-4k the car jerks and does not want to go. Also, my temp gauge in the car does not work sometimes. It will read nothing and then read normal and then go back to nothing again. Any ideas what could be wrong?