07 Outlander P0421 Help
 

We'll, I've tried looking and I've tried searching, and still can't find what I need. My 07 Outlander is giving me the P0421 trouble code. My question is, which side of the engine is Bank 1?! I can't seem to find that little tid bit of information anywhere! I don't think I'll have too much issue swapping out the manifold/cat and O2 sensors, I just want to make sure that I'm doing it on the appropriate side.

Thanks in advance for the help!