my 93 fd is doing really bad.. i drove it really really hard and when i was coming back it started to idle REALLY REALLY LOW like it was pretty much stalling and when i got home i saw on my turbo timer that the battery voltage was not charging and it was running really bad like the whole car was shaking really bad and the car was struggling to keep its idle and now that i changed the alternator its still not charging and running the same but now when i have the clutch in it runs but still runs like it did but when i let go of the clutch it dies... anyone know what this could b

 

check your MAP sensor vacum line