Is it normal for a 2013 mustang
gt rpm revs up to 1 and falls as if you have a cam on... I didn't gave it much attention but when it shut down while being idel then it started to freak me out those happens 3 times now....my car have a Roush axelback which I don't think should be the problem..I had a steeda air intake I fitted it without tuning after one week I got check engine
everyone told.me to remove it because it will reduce the power without tuning so I did and removed the battery to restart it. Check engine went off...there was an incident happend way back that car was still stock it had less than 8k miles. And I was on first gear I wanted to take off I was driving as usual but the car felt as if its choaking I almost pressed full throttle to get it off it happen once or twice ..is that connected with any of its recent issue?