What does a trouble code 12 mean?

[Robs Fieros]

I've already replaced the ignition coil, pick up coil, ignition module, coil wire and rotor button. And you can smell the gas, so I thought it was the spark. Any ideals?

[Fierofool]

If you were only getting Diagnostic Code 12, it means that everything was working correctly and nothing needed to be replaced. 

Does the car even start and run?  If it doesn't, I would look first at the fuel pump relay, one of the 2 relays located behind the air filter canister.  Swap places with the two relays there and see if it starts.