Folks, I saw a couple of threads on this code and a similar one. I have a 2012 Honda Civic Si that is throwing fault code P145C Evap System Purge Flow Malfunction. It is NOT the gas gap. I've read there are some solenoid valves in the system and some other parts that could cause issues. Does anyone have a system schematic of the Evap System? I'm trying to troubleshoot the problem so let me know if anyone else has experienced this same issue. It seems to only throw this fault code when it's really cold outside and then it clears itself when the weather warms up.

Thanks for the help!