I have a 1989 honda civic dx 1.5L. I am female and this is my baby. I have had several people look at her and no one has been able to fix or diagnose her problem. I changed her main fuel pump relay tonight after reading several posts on this forum.

Between 64 and 78 mph she hiccups/sputters. She starts and runs fine at any other speed. Any ideas/advice on what to do next. Family is wanting me to trash her and I just can't, so any input much appreciated.