P30 Knock Sensor

HiProfile · Post by **HiProfile** » Wed Mar 04, 2009 10:21 am

Can eCtune read/display the knock sensor voltage? I just got a cheap Del Sol VTEC, so I have a P30 I can use instead of my P05. However I saw in another thread the knock raw voltage won't be displayed in the PRO version. Can I still read & view the knock sensor's output? I recall seeing it in the graph view template before, that's what puzzles me. BTW I know its not very useful, but I know what I'm looking at regarding raw voltages. I've done a LOT of research into knock sensing itself, and was inches from buying a the knock sensor datalogger made for Megasquirt. I can't imagine the P30 working much worse, and would save me >$100. I also don't want to hook up a det can each time for minor stuff.

Post by **Bugermass** » Wed Mar 04, 2009 12:55 pm

I wouldn't try to use the knock stuff.. The knock detetction is very OVER sensative on the OBDI ecus and will have you way off target if you go by it..

HiProfile · Post by **HiProfile** » Wed Mar 04, 2009 1:24 pm

Well I'm hoping it will display the raw voltage, not the knock count. I wouldn't use it as front line defense, just supplement my tuning. I was thinking about getting a baseline with conservative timing, then adding timing & check for any obvious spikes. Its a motor I built myself recently, and even with the forged parts its quiet for a d16 (as far as audable noise). Worst case scenario is some time spent swapping the sensor, and me going back to the cheap ecu. I was planning on using some special shielded wire I have that's worked amazing for other things, which should help reduce any electrical noise.

Post by **Bugermass** » Thu Mar 05, 2009 12:19 am

its not the sensor or the wiring, its the knock board thats the problem..