Yep. There's a note in Subaru's Diagnostic Procedure for DTC 2444 (SECONDARY AIR INJECTION SYSTEM PUMP STUCK ON), the LH Valve has the pressure sensor integrated.
I have a question...I'm getting the CEL above, and I was wondering if it was okay if I just pulled the relay off of the air pump and valves and clearing the CELs with a protune instead of physically removing the entire system?
The thought of removing the intake manifold to access one of the valves is not motivating me very much.