Fuel regulator Solenoid?

[MitsGSX]

Alright guys, i have a quick question. My car has a check engine light, and i cant drive it until it passes emissions, which means no lights. So I ran the code, and it came up as "The P1105 is referring to the fuel pressure regulator control solenoid having a malfunction". Any Ideas of whats wrong? Is this a common problem? I haven't really inspected it yet, I wanted to get some ideas of stuff to look for first.
Thanks!

 

[MitsGSX]

Haha problem solved!
The previous owner installed a "Tee" in the vacuum/boost line going from the intake manifold to a little black box (what is that anyway) and he put it in the line from that box to the FPR. removed the tee, light went out! too easy! haha well its never that easy... but we'll see if I pass.

 

[MitsGSX]

Emission Victory! but just after I tested it, the check engine light came back on, same code. but the scanner said "Code Pending" this time. Anyone know what this means? and how to shut it off?
Thanks

 

[WeaselHack]

Just clear the CLE using your code scanner/data logger. Or you can remove your battery for a few minutes and that should reset it as well. Good luck.