yes, it is protecting the motor from damage.
the motor could pre-detonate or "knock" that can cause damage
If you run your rig with a bad knock sensor the computer will not be able to tell if or when your engine starts to knock (such as a rod knocking). That is if it isn't already cause the sensor is there for insurance. Make sure the sensor is bad and if so have it replaced asap. It is an expensive job cause you have to remove the intake to get to them (some engines have two under the intake). willyray3
The knock sensor retards the engine timing when there is a knock or ping detected. This will make the car a little sluggish. It is rare that the knock sensor goes bad.
Yes it can hurt your engine to drive with a bad knock sensor. The knock sensor should be replaced as soon as possible.
If the sensor it'self is bad then NO.
The sensor is bad. A properly-functioning knock sensor allows the ECM to advance timing until it senses a knock. It then retards timing until the knock just barely goes away allowing for optimal gas mileage.
No, the knock sensor only retards the timing when it detects the engine pinging.
if a knock gos bad can your car go off
NO it will not. If you have a knocking sound then you have trouble inside of the engine.
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.