Two pins on KLR for knock sensor
02-02-2006, 01:35 PM
#1
Three Wheelin'
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Two pins on KLR for knock sensor
Does anyone know why there are two pins on the KLR for the knock sensor? I think they are pins 11 and 13 if memory serves.
02-02-2006, 04:31 PM
#2
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I cant scan the document but, this is direct from it
10 = ground
11 = ground
12 = ground, shield knock sensor
13 = knock sensor
15 = knocking yes/no (output)
It looks as only 12, 13 + 15 are to do with the knock sensor, there is nothing to say that 10+11 grounds are.
10 = ground
11 = ground
12 = ground, shield knock sensor
13 = knock sensor
15 = knocking yes/no (output)
It looks as only 12, 13 + 15 are to do with the knock sensor, there is nothing to say that 10+11 grounds are.
02-02-2006, 06:36 PM
#3
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Ahhh...so 13 probably provides a constant voltage output where 15 probably provides a voltage spike when the knock sensor reaches a certain level of detection.
02-02-2006, 07:25 PM
#4
The pins are 11, 12 and 13. The signal lead is 13 and the common is 12. Pin 11 is shield ground.
The knock sensor is basically a microphone. If you were to look at the sensor with a scope you would see the audio frequency of the engine noise. The KLR has to filter out the knock noise from all the other sounds.
The knock sensor is basically a microphone. If you were to look at the sensor with a scope you would see the audio frequency of the engine noise. The KLR has to filter out the knock noise from all the other sounds.
Last edited by Bri Bro; 02-02-2006 at 11:33 PM.
