Quote:
Originally Posted by oldpro
I had a key go bad on my 90'once been using the second key ever since
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My local locksmith and GM dealer both have readers that will tell which pellet you need on your ignition key. With your working key as a blank, the new key can be cut. Then you'll have a fresh key with the right pellet.
OR, you can read the resistance across the pellet and compare it to the (attached) chart and select a blank yourself.