i have a 6al box,the other night i was playin with my truck and the truck just died,no backfiring,no stumbling just died,i've got a blaster 3 coil that is fairly new,the ignition itself is about three years old,i've got power to it,when the key is turned on the tach clears and the shift light comes on like it used too,it just wont fire,any advice from some msd guru's would b appreciated thanks