Hello peeps im having a serious problem with my 89 h-back. So im trying to diagnose the problem. I have a few simple questions. Do you have a bbk fenderwall intake on your stang? And does your engine begin to stumble when you disconnect the mass air flow sensor. when i remove the mass air flow sensor on my mustang,the vehicle stays on, and doesnt even stumble (more than it already is) Is this normal or is the car supposed to shut off. Thanks for the help peeps. Please reply...i need all the help i can get.