The knock sensor detects spark knock or ping.
No it will not. The knock sensor is used to adjust the timing.
yes when it is not working properly
The knock sensor just advances and retards the engine timing only. If there is a noise in the engine then you have engine are valve train problems. The knock sensor will not make the engine knock.
No it will not.
No, a faulty knock sensor will cause a code 43 normally. check for spark, diconnect a wire from a plug, install a plug in the wire, lay it on something metal, have an assistant crank the motor and watch for spark...
the motor could pre-detonate or "knock" that can cause damage
Yep.
No it will not.
You have another problem other then the knock sensor if the engine will not start and run. A knock sensor will not cause the engine not to run.
No it will not cause it not to run.
LS does not have a knock sensor. GSR does have a knock sensor