Re: HELP!! Camaro only starts cold.
Your injectors may be on the way out. They could be making the mixture so rich it won't run except when cold. Start off by ohm-checking them (they should all be around the same value, ~16). Then put a fuel pressure gauge on and note how fast the fuel pressure drops after you stop the engine. If it immediately drops to <10 psi, your injectors may be leaking. You could pull your spark plugs and see if they are fuel soaked. Also pull the vacuum hose to the fuel pressure regulator, and smell for fuel on the inside of the hose (to indicate a torn regulator diaphragm).
The fuel tank will hold 1.0 psi of pressure before the release valve kicks in, and 1.0 psi "feels" like alot when you pop the fuel cap and the pressure bleeds off for 20 seconds. But its okay.
Hope this helps.