2004 Nissan Sentra SE R Spec V 2.5 with engine code P0444

Question

I have a 2004 Nissan Sentra SE R Spec V. Having some issues with my emissions system. 50% of the time the car is running it will idle up for about two seconds and down for about two seconds. It happens in cycles and I did notice that whenever the radiator fan starts the funny idling stops immediately. It does register as a P0444 Evaporative Emission Control System Purge Control Valve Circuit Open. Where is that? And can I just replace that valve and be done with it, or could it be other pieces that are involved in the emissions system that could flag that code?

Answer 1

Check for broken or cracked hoses if none is found most likely the valve is stuck or bad.

https://www.autocodes.com/p0444_2004_nissan_sentra.html

The EVAP canister purge volume control solenoid valve uses a ON/OFF duty to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the ECM. The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.