1996 Chevy Camaro

You most likely have a bad sensor in the ignition lock however the wires leading to it have problems sometimes.

You likely need a new ignition lock but they fail quite often. I can give you a way to bypass the lock sensor if you want but a new lock would be the right way to fix it, assuming the lock is actually the problem.

That sensor can be bypassed. You would need a digital ohmeter to measure the resistence of the pellet in the key. Now go to Radio Shack and buy a resister of the exact same value as the key pellet. Go to the base of the steering column and locate the two thin white wires that go up to the sensor. Cut the two wires and solder the resister between the two ends coming from the harness. This will permanently bypass the sensor but not the rest of the system.

No, it's not part of the security system.

As stated in the answer, the resister can be bought at Radio shack. If you get the correct resister and install it correctly, the car will start without a security lockout, assuming that was the problem in the first place.

You likely have either the wrong value resister, used the wrong wires or the sensor was never the problem in the first place. The resister simply substitutes for the key pellet permanently.

Either you have the wrong wires or much more serious issues. Those wire have to connection to the brake lights.

No, the wiring diagram says they are white.

Here is the diagram and all the possible resister values

Then either the key is no good or your reading it incorrectly. Are you sure it's not 2.9K