i didnt read most of them but keep the 40. you will kick yourself in the ass if you get rid of it. U have a daily let the 13 sit till your ready to have some fix the problem. ive never heard of this problem and its not the slave. i just think you need a friend that knows alittle more then you.
U have to ground out the triple pressure plug for it to turn on. thats what i had to do. i wont turn on if its empty.. thats what the pressure switvch does