Hmm, might jumper it high. If it is an output from the duino then the duino is sorta in charge of it's state, dunno for sure though. Also since it is just some bit banging code for intit another pin connected to the L line should not be too difficult (twiddle two pins in the bit banging section).
This is where I left it a few months ago:
http://ecomodder.com/forum/showthrea...html#post93434