So my wife wanted a mustang, and being that we are building a 5.0, the ecoboost seemed like a great option. it has 80k on the dash and its a 2015, that being said it had a ghost code and came with no warranty, its a misfire on cylinder 1. I've changed spark plugs coil packs and still cant fix it. i changed the low fps and nothing. it still shutters on acceleration. I've cleaned the fuel injectors, and its only gotten one other code and it was the fuel pump control module circut open (P025A) and that code wont come back, ive reset the gas pedal, checked compression and everything came back good. i am at a loss on what to do now. im worried that it might be somthing major at this point. if anyone knows anything that it might be or has dealt with the same please let me know i cant just start throwing money at it and praying..