I installed a vance & hines throttlepak, had bike running, ran good for 2 miles then check engine lightcame on, shut off bike then it would not start. Unhook throttlepak, bike runs fine, no check engine light. Did anyone have this problem.

 

Had one on my 2010 Ultra Classic, did not have any runability problems, but did not feel that it made any real difference in the throttle response as they claimed it would. Ran it for a couple of weeks and then ran without it again. Was very disappointed, especially for the price of it.

 

Junk junk junk! Send it back! Get a refund!