Well X5SND. the first time the problem appear , I took my car to autozone and the scan threw the code P0363 Misfire Detected - Fueling Disabled. then this technician told me he ran a more throughout scan at the Dealer and result told the Injector No 7 was failing

I made a little research about that code but I found that particular code may cover many parts like a ignition coil , spark plug or injector to name a few

My X5 is a 4.4i v8

any help would be greatly appreciate

thank u