I'm doing a S5 tII swap into my S4 N/A. Yes I know first mistake... I figured a pfc would help simplify the swap somewhat. I've come to the conclusion that the banzai s4 adapter is my best bet. Is there a way to wire in the s5 tps's to the s4 adapter? What else do I need to adapt on the s4 na harness for this to work? Any and all pointers very much appreciated!

 

As I said in your other thread, the S4 adapter has accommodations for wiring in the S5 TPS with full range throttle. Basically you run the FRT wire from the adapter to the Black / Green Stripe wire on the S5 TPS connector

You can get an idea from the Cosmo TPS how-to Banzai Racing Cosmo TPS Connector

Using the N/A harness in a turbo swap really has nothing to do with the PFC installation.