1990 Chevy Camaro

First thing you should have done was to cross the A & B terminal in the ALDL which is on the bottom of the dash by thesteering wheel. Turn the key on and see what codes are stored. Then check to see if you have any spark or fuel pressure, you need 40 p.S.I. Change the fuel filter. Then come back to the site and look under OBD1 if you find a problem. You may have a bad MAP sensor why it won't run or idle, but check yoru codes first. If you don't have any spark then go to tune up on the site and it will guide you step by step on how to check it.