Ignition key copying

[Karl]

The key copier guy told me there is a chip in my key (VATS) and I need a chipped key to replace

Are the keys specific to the LT5 or will any blank key off eBay work

Thank you.

[onetinsoldier]

There is like 14 different resistor chips , most dealers have the reader to get you the correct key , you can get it cut anywhere !

[Dynomite]

Originally Posted by onetinsoldier

There is like 14 different resistor chips , most dealers have the reader to get you the correct key , you can get it cut anywhere !

Use and Ohm meter and measure the resistance of the black pellet.

1. Key Codes.

Ohms-----------------------------------------------VATS Key Code #

402 ohms pellet----(acceptable range 386-438 ohms)----------1
523 ohms pellet----(acceptable range 520-564 ohms)----------2
681 ohms pellet----(acceptable range 650-728 ohms)----------3
887 ohms pellet----(acceptable range 850-942 ohms)----------4
1130 ohms pellet---(acceptable range 1085-1195 ohms)--------5
1470 ohms pellet---(acceptable range 1411-1549 ohms)--------6
1870 ohms pellet---(acceptable range 1795-1965 ohms)--------7
2370 ohms pellet---(acceptable range 2275-2485 ohms)--------8
3010 ohms pellet---(acceptable range 2890-3150 ohms)--------9
3740 ohms pellet---(acceptable range 3590-3910 ohms)--------10
4750 ohms pellet---(acceptable range 4560-4960 ohms)--------11
6040 ohms pellet---(acceptable range 5798-6302 ohms)--------12
7500 ohms pellet---(acceptable range 7200-7820 ohms)--------13
9530 ohms pellet---(acceptable range 9149-9931 ohms)--------14
11800 ohms pellet--(acceptable range 11328-12292 ohms)------15

Search C4 Corvette VATS on Ebay.

[Karl]

Thank you, will this key work?

https://www.ebay.com/itm/1990-96-CHE...gAAOSwRQxab3i5 or are there 15 different choices out there?

[secondchance]

Originally Posted by Karl

Thank you, will this key work?

https://www.ebay.com/itm/1990-96-CHE...gAAOSwRQxab3i5 or are there 15 different choices out there?

1 in 15 chance that it will work. you need to determine resistor chip value from your old key.

[Dynomite]

Ecklers has VATS keys by code...…..Vats Corvette Keys by Code

Use and Ohm meter and measure the resistance of the black pellet (resistance from one side of key to other across black pellet).

1. Key Codes.

Ohms-----------------------------------------------VATS Key Code #

402 ohms pellet----(acceptable range 386-438 ohms)----------1
523 ohms pellet----(acceptable range 520-564 ohms)----------2
681 ohms pellet----(acceptable range 650-728 ohms)----------3
887 ohms pellet----(acceptable range 850-942 ohms)----------4
1130 ohms pellet---(acceptable range 1085-1195 ohms)--------5
1470 ohms pellet---(acceptable range 1411-1549 ohms)--------6
1870 ohms pellet---(acceptable range 1795-1965 ohms)--------7
2370 ohms pellet---(acceptable range 2275-2485 ohms)--------8
3010 ohms pellet---(acceptable range 2890-3150 ohms)--------9
3740 ohms pellet---(acceptable range 3590-3910 ohms)--------10
4750 ohms pellet---(acceptable range 4560-4960 ohms)--------11
6040 ohms pellet---(acceptable range 5798-6302 ohms)--------12
7500 ohms pellet---(acceptable range 7200-7820 ohms)--------13
9530 ohms pellet---(acceptable range 9149-9931 ohms)--------14
11800 ohms pellet--(acceptable range 11328-12292 ohms)------15

[WVZR-1]

Originally Posted by Karl

Thank you, will this key work?

https://www.ebay.com/itm/1990-96-CHE...gAAOSwRQxab3i5 or are there 15 different choices out there?

Take the key that works by a GM dealer and ask them to "DROP IT' in their VATS Interrogator. That will ID the resistance code.

[Mystic ZR-1]

Last year I paid $35 at
the local Chevy stealership
for one. Took them 5 minutes
to make it.
Could be lots worse, $325 and a lot of
BS (proof of ownership etc) for a replacement
key at the local Teutonic car emporium ☹️

[Flyman 27]

ACE hardware has a chip reader in their key dept. They read my key & sold me spares that work perfectly.

[cp1joel]

Hi all, I tried copying my ignition key about a year ago as I only received one when I bought the car.

I determined resistor value from my old key and ordered a replacement online and got the key cut. Car fired up perfectly and drove it about 20 mins then turned off the car. Came back a few mins later, key in ignition but no start. Seemed to be a VATS issue from what I read so I left the car about 20 mins. Tried with my old key and it started fine.

Has this happened to anybody else? I have refused to use the copied key in case this happens again.

Joel