Hi maxz1 here ,it runs realy bad misses and smokes bad it's black smoke,I checked the computer codes and it had 12,15,23,45 Ok so I fix the heat wire end, plus fix vacume line that was wrong and also put different MAT sensor on it dist cap & roter, well I started it up it run the same,so I checked for codes it had 12 thats all, how can this be or what could this be,shouldn't it have some codes with all that smoke ????? it made the ground black it's so bad,could it be the motor is bad ?????? THANKS FOR ANY HELP !!!!