coyote_nik
Junior Member
Bought my 2013 mustang gt like 2 months ago from a dealer, was all fine for the 1000mile road trip i did to college, now it has randomly developed a missfire at part throttle below 3k rpm but the second you go over 3k rpms with more than half throttle it dissapears, i have replaced plugs, coils, and harness wires, i have gotten crackes manifold and injector suggestions from both my instructors with 1200hp drag coyotes so that was going to be next check, any ideas on what could cause this