fault

Hi Guys, new to the forum so I appreciate any help I can get. My battery would die if I didn't drive the truck for 4-5 days, so I decided to check to see if there was any current draw while the truck was not running. I found about 0.23 amps drawing all the time, so I started pulling fuses...

I am having a problem with my 95 ford ranger. It's an xlt and has the 4.0 v6 and is a 5 speed. My check engine light has been on and it comes up "Evap plug fault" when i plug a computer into it. The truck also has a tendency to have a rough idle(fluctuates) when I pull up to a stop sign, etc...