[Diy_efi] 4G63 (1st generation) knock sensor

[Hugo Normand]

>From what I know, it's a simple mic and the ECU does the filtering job.

Hugo
'93 Laser AWD 16G
13.82 @ 98 MPH

-----Message d'origine-----
De : diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org]De
la part de Grant Beaty
Envoyé : Friday, January 31, 2003 3:10 AM
À : List for general do-it-yourself EFI talk
Objet : [Diy_efi] 4G63 (1st generation) knock sensor


Does anyone know if the 1G DSM knock sensors are of the filtered variety?
That is, the kind that only responds to one specific frequency (the knock
frequency, hopefully), or the kind that is a normal mic and transmits all
noises? I know the 2nd gens are different.

The alternative (from what I understand) is a sensor which is a normal
microphone, but the ECU does FFTs on it to filter out the signal.

>From what I've heard the 1G DSM sensor may in fact be the filtered variety,
in which case it might be able to be used on a Supra (same bore and block
material at least). Currently affordable stand alones simply look for peak
amplitude on the Supra's unfiltered knock signals, while the stock ECU does
FFTs.

Damn, can't wait for ion sensing.

Thanks for any help,
Grant Beaty


_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi


_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi