Changed the spark plugs @ 205k. First change ever! Pulled the hose off the TB where the PVC connects in, idled at 1200-1500. Found the detached hose, pulled the resonator back out, and felt a huge crack when reattaching it to the nipple. Idling OK now, but I guess I gotta get to a dealer to find some new hoses (can't find them at Advance, O'Reilly, or NAPA).
Wonder if anyone sells a "complete rubber hose kit" for the WJ.