OK I have a 90 Firebird. I have lost the key and can't get any lock smith to want to come out and fix the dang thing. It is VATS system can I just change out the ingnition cyld or will it have to be the same vats key to work?

 

take your registration card to any gm dealer they can take the vin number and cut a new key for you,later jimmy

 

jimmys right but to answer your question if you replace the cylinder you will have to still know what rististor was on the key there are 9 different ones i believe then you would have to cut a new key with the right resistor value in order for it to work. i use to make these keys at a hardware store where i use to work it will problity coust you about 20 bucks at a hardware store i don't know what the dealer will charge, maby nothing if you catch them on a good day

 

FBODY had 15 different resistors

 

Already done that. They told me it would tell them how to cut the key but not which vats key it needed. They made me a set of keys with out the chip in it and they open the doors and turn the ignition but without the vats key it wont start.