Knock sensor voltages?

[redhotrod]

Anyone know what voltage or current value the knock sensor puts out from minor to sever knock?

 

[Black Car]

FWIT the voltage is constant (9vdc +/-) unless the knock sensor detects knock and then the voltage goes to zero.
Then when the knock is gone it goes back to 9vdc.
This voltage/no voltage occures many times per second when knock is present.
The amount of time that the voltage isn't present is how the computer determines how much timing to pull.
This is how I understand it works (Can be wrong).

I don't know what values the Casper Knock Gauge works off of.

Gary

 

[TurboTR]

Gary I think you're describing the ESC module output. I think the question relates to the analog voltage from the sensor itself.

TurboTR