timing belt was replaced at 110k. Didn't fix this mild knocking issue, which started around 85k. Not sure what WP is but I've had a beer already. This truck has had a lot of TLC, more than just scheduled maintenance.
I've heard that the harness in this engine can become defective without triggering any knock sensor code. My T100 knocks under load when engine is warm, esp on a warm summer day. Local Toyota specialist basically refused to change the harness. All the usual solutions (spark plugs and wires...
