Rough Idle

My VX stared to idle rough the other day.. then today the "check engine " light came on. I took it to an Anvanced Auto Store and they checked the code for me . It came up as codes ...PO 107 bank one and PO174 bank 2..system to lean. Can anyone tell me what these codes mean on a VX ? Is it perhaps the intake manifold gasket ?

Thanks In Advance...............Fred

You may want to read up on this thread for possibilities:

http://www.vehicross.info/forums/showthread.php?t=3667

Maybe the fuel pressure regulator? This problem has recently come up on the board.