Car Alarms: 91 chevy camaro pass key decoder, chevy camaro, resistor values

Question
i happend to of lost my keys. i then put a new ignition cylinder. but my car has a pass key decoder and i need to how how to completely uninstall the decoder. any information on this would be much appreciated. thank u

Answer
The 91 Camaro utilizes the VATS system.  The VATS system read resistance across the pellet in the key, which the computer looks at to ensure it is the right value.  I do not believe this value can be reprogrammed in the computer.  However, you can bypass it.  Without the original key it will take more time as you will not have the original key to measure across the resistance, but the VATS system only had 15 possible resistance values.  If you take off the dash panel under the steering column there will be two wires, normally two white wires in an orange plastic jacket.  If you cut these wires and insert the proper value resistor across them to the the computer side (not the key switch side) the VATS will be permanently bypassed.  I am only really familiar with DEI products, but I am sure there are others that offer something similar.  The DEI part number is 652T and it is available on eBay for very little money.  It includes all 15 possible resistor values for bypassing the VATS system in your car.