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SC400 Knock Sensor Voltage Range

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Old Nov 19, 2010 | 10:52 PM
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From: fl
Default SC400 Knock Sensor Voltage Range

Does anyone know the knock sensor's voltage range for the SC400? I can't find the information anywhere.
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Old Nov 20, 2010 | 12:13 AM
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They make a voltage signal when KNOCK is present. What problem are you having? (Why do you ask about the knock voltage?)

Here is a quick video.
http://www.youtube.com/watch?v=0xI94ZDF54Y


http://www.youtube.com/watch?v=L8xRJ...eature=related
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Old Nov 20, 2010 | 09:17 AM
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Are you trying to see if your knock sensor is working? If so, take out the knock sensor(s) and use an ohmmeter and check that there is no continuity between the terminal and the body of the sensor. If there is continuity, replace the sensor(s).
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Old Nov 20, 2010 | 09:22 AM
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From: fl
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No, I just want to know the voltage ranges of the knock sensors. I.E. for what minimum voltage wave amplitude being put out by the sensor does the ecu think that the knock sensor is working properly (It has to see something other than zero I am pretty sure); and what amplitude range does it assume low knock, medium knock and high knock. I know how they work. I just can't find any values for these.
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