Can anyone tell me why my computer in my 86 Trans Am is a pile of junk. I have a quadrajet 305 automatic and my computer is dead. Well at least it thinks its dead. The service engine soon light is on but when i probe the terminal it doesnt flash? What does that mean. I cant get any codes from it? Everytime I start my car now their is massive black smoke coming out of my car. Can anyone help?