[RICK LAKE]

Zedn Guy you have no thief system signal to the ECM to let the motor run. You need a stand alone ECU. As for the p0315, once the motor is running and warns up you need to do this test with a MDI or tech 2 and candi depending on the year of the ECU. IF you keep trying to start the motor. The system will totally default and you will need another ECU.
Only other way around this is to get a ECM, BCM, and ignition cylinder assembly and install them in the car. Will need to wire them up for power, grounds, data lines, and ign switch signal.
The only one that has a stand alone ECU I think is MSD. I could be wrong.
You would be better to go after market. Try F.A.S.T or Big Stuff. Good luck Rick L.