I fixed my 99 Z28 myself with a 20 cent resistor. Dont let GM fool you into buying a new ignition cylinder or even a new key. If your camaro has a Resistor key at one point most likely before 100,000 miles your gonna turn your key and your security light on your dash is going to flash
constantly and your car wont start. If you want a quick fix without all the hassle of changing the ignition cylinder and buying a new key that cost over 100 dollars parts only, labor to install much more, just take a ohm meter measure the ohms on your key. The little black chip at back of key has a metal piece on each side place meter probs on each side, look at ohms. Now go out to radio shack
or an electronic wholesale place and buy that ohm resistor you may have to combine some to make the ohms it doesnt have to be exact within 15 ohms is fine. Now remove 4 screws holding bottom plastic cover under dash just below steering column, carefull of trunk release connector. Find a small 2 wire with black connector and a orange sleeve coming from steering column that covers wires almost down to connector, both wires are mostly white and very small, solder the resister across these 2 wires, heat shrink resistor or electrical tape. Bingo your car starts! And you never have to worry about this defect in the ignition cylinder again. If you still want the security feature just put a push button on the resistor across the wires and hide button under the dash. Trust me the new ignition cylinder will do the same thing again in the future, was a bad design on GM on this cylinder, wires move with ignition cylinder and eventually break. Hope this helps and saves money for you Camaro Fans!