V847 Wah w/ Vintage Gibson Low Impedance PUs

[Primus]

So I bought this 1971 Gibson Les Paul recording Friday and I love it. It's my favorite guitar in the world. Thing about the recording is it uses low impedance PUs for a direct in to the soundboard, but has a built in passive amp to get the signal up to guitar amp input levels.

So anyway, that is the weird quirk of the guitar. The problem I ran into is that my wah is quitting on me. I can stomp it on, and can hear just a very slight wah sound from it. If I roll back the trimpot on the Q resistor I added, the slight wah will reduce to nothing as the inductor is bypassed.

I have heard of issues with wahs that precede a fuzz face not working. What about wahs that follow a les paul recording?

A further problem is I seem to remember the pedal working friday night, albeit badly. So did I kill something in my wah or what? I don't see how I could have friend the thing or what component I could have fried.