03 Jeep kJ idling problems after purge valve replacement

[Theredkj]

So today i replaced the purge valve in my Jeep for the evap system. The previous owner had it installed upside down, so I decided to just replace it since I kept getting code po441. Ever since I replaced this, it runs fine but if I blip the throttle, whenever the rpms come down it will almost stall but come back. I can almost her a hissing coming from the throttle body area but I’m not sure. Does anyone have any thoughts on this, or what it could be? Thanks in advance.