that code is for the EVAP system not the PCV system.
The Evaporative emission control system works to control Hydrocarbon emissions emitted when the gasoline evaporates. The system contains a few major pieces, the canister, the lines, the purge valve and the canister close valve.
Fuel vapors are contained in the evap canister, when the canister needs to be purged the ECM closes the vent valve and opens the purge valve. One end of the purge valve is located on the intake manifold. A vacuum will then "suck" the captured fuel vapors out of the canister and in to the engine, where it can be burnt instead of released to the atmosphere.
Your code is a P0443- Evap purge valve circuit malfunction. I don't know what you have for tools or experience so i will give you a couple ideas for testing. You can run the car and wait for the evap to activate, then while activated check for power and ground at the purge valve. Typically a dealership would use a scan tool to activate the purge valve for testing, I am guessing you can't do this.
Another test you could do is remove the valve from the car, the supply 12 volts to the valve. you should hear a click. When no power is supplied the valve will be closed, blow in to one end and see if air comes out the other. Now, apply the power again and see if air comes out, It should.
This should get you headed in the right direction. Please ask any questions you might have. Good luck.
EDIT: did you disconnect the purge valve line from the intake manifold, that would be a logical explanation for the code. because there is no vacuum created the ECM thinks that the purge valve is stuck closed.
