I have a 2012 Nissan versa. It start rough idling and very weak acceleration. Long story short, started smelling fuel periodically in the Cabin. Got a generic airflow code trip and a cylinder 3 misfire. Tracked the smell of gas outside of the car down to the evap system but couldn’t see any visible leaks. Filled up my tank with gas and had liquid gas coming out the vent hose. The vent hose on the versa is stuck right into a frame rail so as it leaked it ran down the frame leaking all over the rest of the evap system. I’m pretty sure the canister must be shot now if all that fuel is pushing through there, but any ideas on what would have cause the problem. I may be wrong but I’m pretty sure this is causing all the performance issues and the codes.
Also, I’ve already changed MAF sensor, O2 sensors, and spark plugs. Also performed a spark test on number 3 coil pack.