P0492 error code and SAI cleaning

[Robvoip]

So this code just triggered a CEL after a cold start (it was stored permanent in the ecm prior), after doing research it seems to be mostly related to the clogged SAIs when both banks trigger it. Could there be a other cause when it's 1 bank only? I am getting under the supercharger to replace the pcv and leaky valve gasket this week, should I be looking for anything specific related to the SAI?

[Discipulus]

The SAI if I remember correctly is located right behind the left and right upper timing covers at the back of the engine. To access them you'll need to remove the catalytic converters and heat shield. Then you can remove the SAI, or sometimes called a combi valve?? and inspect the ports to see how clogged they are. I've never had to clean these myself, but I have removed and reinstalled mine when replacing the upper timing chain tensioners.