every now and then when I go to start my 1991 z-28, thecomputer reads my key as not being the right one. the stupidantitheft system is messed up. someone told meabout a key bypass systemcan anyonetell mewhat part i would need to fix this problem.

 

The contacts on the pellet are probably worn out and making poor connection. Have a new key made up and it should solve your problem.
Measure the resistance across the pellet, then go on Ebay (search for VATS key) and buy a key blank with the same resitance for about $10. Once you got the blank, go to a locksmith and get the new key to match the old one, probably $5.

 

i had the same problem your having. just go to a locksmith and he will measure the ohms from the key there and he will make you a new key. it should run around 20-25 per key. thats what i payed down here in miami. if you want an orignal gm key just go to the dealer and pay like 35 for each.

 

You should be able to go to any Ace Hardware and have the VATS key cut, it shouldn't be more than $25. They have a VATS key system that works everytime.
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