With the catalytic converter removed, the truck is running FANTASTICALLY. There's still some congestion in the exhaust, which I'll get checked out, but right now the vac/boost gauge is doing exactly what it's supposed to. But it's boosting up to 7psi consistently, and pulls pretty hard for a 4-banger. Finally.
Not unexpectedly, the catalytic converter mfgr declined to warranty the converter, and the shop which installed it (also did my motor, look back through the posts for some serious whinging on my part) has not jumped forward to help me out and insulate me from their vendor - which they no longer use since they didn't come through on warranties very often. However, it's definitely a manufacturer's issue, so I'll be raising this one to the right associations to get some satisfaction.
I'll be taking the 4Runner down to Ed Hansen's to get the muffler checked for catalytic converter matrix detritus, and a Magnaflow cat (or whatever they recommend). They did a fantastic job on my motorhome - it's never run this good or gotten 8mpg before (amazing what we celebrate, eh!? Beats 6.5-7mpg tho!).
Next up - getting the rear window to go up using the rear tailgate switch.
And a teaser for upcoming posts... >:-)