That was some 6 years ago.
I figured this time the fix would be just as easy....
I got a new one from Rock Auto this last week, and after I installed it and cleared the codes, it CEL soon came back on! Crap.
I thought maybe I had gotten a bad sensor (it happens), but when I pulled the sensor and tested it with my multimeter, I found it was generating milivolts in response to taps from a wrench. Crap Crap.
Reinstalled it, and listened more carefully, and yeah, I think I'm hearing some knocking. I tested the timing without and with the green bypass terminals connected, and sure enough, the timing is advancing when in normal mode as an activated knock sensor would do.
Thing that really really sucks is that the tires and both cats are brand new and less than a year old. To make matters worse, I was going to sell the 94 Legacy wagon to raise money to start a new business. That's off the table now.
So, here are my options. Either I shell out another $600 + for a replacement engine (w new gaskets / seals), or just give up on Murph and wash my hands of it.
Edited by Sonicfrog, 04 September 2012 - 07:35 PM.