hesitation 3.8 98 mustang

MY 3.8 98 mustang has a noticiable hesitation at 45mph and a slight hesitation at 60mph. I changed oxygen sensors but had no improvement.

Did you check the DPFE/EGR system? The EGR valve/tube can get clogged or the DPFE sensor clogged/moisture built up in it and both can cause this.

Thanks. That will be my next task to perform.