Igor Semynozhenko1436215414 Posted April 15, 2014 Report Share Posted April 15, 2014 Hi. Â Please help - maybe someone has already gone through this - what is the proper gain and frequency setting on the G4 Knock Block using with LINK BOSCH DONUT knock sensor on 04 STI EJ257 (any EJ257 will work) Quote Link to comment Share on other sites More sharing options...
Simon Posted April 15, 2014 Report Share Posted April 15, 2014 Frequency will be 6kHz Narrow Band Filter the gain you will need to check on the engine as they all vary a little. Quote Link to comment Share on other sites More sharing options...
Simon Posted April 17, 2014 Report Share Posted April 17, 2014 Go with the voltage method. It will work well. Quote Link to comment Share on other sites More sharing options...
Simon Posted April 23, 2014 Report Share Posted April 23, 2014 My pick would be that it could be knocking but very mildly, or you are picking up electrical or some other mechanical noise. Quote Link to comment Share on other sites More sharing options...
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