my truck randomly started idleing really rough. it will bounce between 400 and 1000 rpms and the whole truck will shake. it died on me in the middle of the road and the check engine light and battery light came on then it wouldnt start for about a minute then it fired right up but still idled rough. i would plug in a code reader but one problem....my OBDII port has a short in the wire and the fuse just blows every time i try to put a new fuse. thanks guys!

 

Check the plug on your MAF sensor mine did almost the same thing and it turned out the MAF sensor came unplugged