I have a gmc s15jimmy 4.3 z code 4wd,v6enginem my car check engine ligth is on.

What is your question?

the code reads short in fuel system circuit?can seem to find the proplem.car runs find when you first start in the morning,then after a few minutes it starts having a miss,nobody can figure out the proplem.does someone have any sucgestions?and hou to you turn the check engine ligth off?