So I finally hooked up the HHH to the 92 TT. That damn CEL was code 31-Detonation. BTW- it is a completely stock car.

Every thread I've seen, people just say to replace the knock sensor. Most of these people are getting readings 7-8-9 across the board. I have 0 at idle, about 10 at 2k revving in neutral. It trips the CEL when I'm WOT over 4k rpms - driving @ full boost. (I haven't logged that yet so I'm not sure of the knock count)

Basically I want to know:

Does it sound like a bad sensor?
What else causes knock?
WHAT should I do next?

Thanks you sirs.

Lots of stuff causes knock, but you definitely have a loose/bad sensor. If it's rattling around, it'll show false knock readings.

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06 Blue EVO 9