Car Alarms: 2000 Malibu, passlock ii, remote starter

Question
I was trying to install a remote starter, now the anti-theft light is flashing and the car won't stay running. Can you tell me how to reset the anti-theft system?  

Answer
It sounds as if your system has gone into long tamper mode.  Put your key in the ignition and turn the key the run position (not start) and let the car sit for about 10 minutes.  You should see the light extinguish, allowing you to start the car with the key.  This will only work if the passlock II wires you interfaced with are connected properly.  If the passlock wires are not restored or properly connected the vehicle will not see the proper resistance code and will not reset, so be sure the passlock wires that you interfaced with are connected before trying the 10 minute reset.