Knock sensor and wiring harness

Changed the knock sensors about a month ago along with plugs and wires. Then a week later extracted and replace all exhaust manifold bolts (one needed to have a new head welded on it to get out.) Less than hour after finishing the bolts, I got the knock sensor CEL for both banks having low circuit readings. Just took the manifold back off and did the multimeter test. Both sensors are showing 100.7K ohms. Do I need to replace these along with the harness? I cleaned them, the harness and down inside where the knock sensors bolt down. There was a little oil in the forward most knock sensor pan area. All clean now.

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