how do i turn the "check engine ligth off"?i have a 4.3 vortex v-6.

What is your question?

the code reads fuel circuit ground problem,the car has hadd the ligth on for awhile,and the car was running fine.I had a shop check out the car ,after changeing the intank fuel pump,because the car would'nt start,after two days the shop said the fuel pump system wasn,t grouded,they fix the problem by running a new ground wire from the fuel tank to the fuel relay switch,they cut the original ground wire that ran inside the wire loom.