1999 Pontiac sunfire you need a diagram of the steering column and ignition switch your car will not start Is there a Kill switch It turns over but will not stay on it just shuts off?

there are three wires that come off the ignition switch cylinder the must clip tightly to the wires that run down to the ignition switch. on my car i replaced the ignition switch cylinder forgot about the wires and the same thing happend it kept dieinguntill the wires were securly/tightly connected. I don' think I would just start hacking at wires. A wiring diagram if available would do little good. I really doubt you have a wiring problem, it is more than likely a problem with the Passlock Security System (factory anti-theft system). I have done a lot of looking into this system in the past week, it is really quite simple, yet sophisticated. Have you changed keys or had new keys made lately? If you have, you may need to go back to using the previous key or do a reprogram of the system to teach it the resistance value for the key you are using. If that does not work, more than likely it is the device in the ignition cylinder lock is bad. The device in the lock reads the resistance value from the key and tells the computer that the correct key is being used to start the vehicle. Try this process: For the Passlock 2 system, put the key in the ignition and turn the engine over (the car should not start, if it did you are done), turn the key to the ON position, let it set for 10 min. The security light should be flashing. After 10 min. the security light should stop flashing the car is ready to learn the new key value. Turn the key off, wait 5 seconds, and then try to start the car.