picked up a 95 ls at an auction, and trying to get it running. The problem is to get it started I have to hold it a wot and has a real bad miss, the whole car shakes and if I take my foot of the gas it will die. I unplugged the map sensor and it would idle but still had a bad miss. The car has an msd coil and ignition system I think may be the reason for the miss, but dont know why it would only run with the map unplugged. It also runs real rich the plugs will be black after 30 seconds of running. Also no cel light