I bought an 89 Iroc-z and sometimes it doesnt start im pretty sure that it is the little security thing on the key? Im thinking that i would like to see if you can do away with that security system all together and if you can can someone tell me how?

 

do a search for removing the vats. Vehicle anti-theft system. Basically you measure the resistor in the key with an ohmmeter, then buy a resistor with that value and solder it to the two wires that would go to the resistor in the key.

this is from the thirdgen.org tech articles section
https://www.thirdgen.org/newdesign/tech/vats.shtml

 

Or just clean the key pellet and contacts within the ignition lock cylinder.

 

true, i would try to keep the vats if you can.