Hi I just had my in tank pump changed. After roughly 60 miles in town I tried hitting the interstate. It wants to sputtering getting up over 45/50 mph. And when I came to a stop after getting off the interstate it stalled out. Was able to start it up after a minute of trying. Runs fine at 35/40 mph in town. Trying to see if there's something I can do before the shop i had dob it can get it in in a few days. Normally try to do work on my own when I can but being in MN and not having a garage I can fit it in I lose it to the weather sometimes. Thanks for any help you can give me.