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Turning off knock sensor under certain conditions?

Old Jul 11, 2008 | 11:59 PM
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Turning off knock sensor under certain conditions?

Would it be possible to do this so that false knocks can be eliminated during low load or low RPM? Transiting into open loop at loadcell 70/80 does help in minimizing the false knocks but in the higher gears, I find myself cruising in open loop as well. This will be a very helpful patch for those running without balance shafts or have a noisy valvetrain/clutch etc
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Old Jul 12, 2008 | 06:26 AM
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Search, this has been discussed already Not the best idea, but if you have to do it, ya have to do it!
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Old Jul 12, 2008 | 08:07 AM
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I have searched and I know there's a way to turn it off completely but I didn't find any threads on how to turn it off under a certain load...care to point it out?
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Old Jul 12, 2008 | 11:51 PM
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Here's an example of the ridiculous knocks that I'm getting while easing on the throttle during cruising. The octane number doesn't budge but the timing is pulled severely.

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Old Jul 13, 2008 | 03:36 AM
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Originally Posted by ecuflasher
I have searched and I know there's a way to turn it off completely but I didn't find any threads on how to turn it off under a certain load...care to point it out?
how to turn it off completely?
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Old Jul 13, 2008 | 03:44 AM
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Someone needs to figure out what all of the knock filtering maps do exactly, so we can dial in the problem cars.
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Old Jul 22, 2008 | 04:30 AM
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Bump...no one else has a problem with such knocks?
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Old Jul 22, 2008 | 05:38 AM
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I agree that it is very important to figure out more about the knock filters and how they work.

In my opinion one of the only lingering limitations of the stock ECU compared to an AEM is the ability to set custom knock filters on the AEM. This is the only thing that would hold me back from running stock ECU on a built motor.

If only I knew how to dissasemble ECU code.
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Old Jul 22, 2008 | 06:12 AM
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well once I get 5.8 out (and yes i am making some progress) I will do the turn off knock sensor for various rev/load ranges
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Old Jul 22, 2008 | 06:14 AM
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that would be pretty slick, can't say I'd use it without testing for knock with a listening device.
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Old Jul 22, 2008 | 06:23 AM
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Originally Posted by tephra
well once I get 5.8 out (and yes i am making some progress) I will do the turn off knock sensor for various rev/load ranges
Yahoo!! Dave's the man!! Since its not easy for us to buy you lotsa ...more donations your way!!
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Old Jul 22, 2008 | 06:28 AM
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yeah well thats the other thing - is 2500rpm/70-100load actually phantom knock or is it real?
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Old Jul 22, 2008 | 06:32 AM
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From: NNJ
Is there a way to make it so that you can log to see if there is knock while also preventing the ECU from recognizing knock.

Sort of turning the knock sensor off but only for timing purposes and leaving it on from logging purposes.
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Old Jul 22, 2008 | 07:00 AM
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Originally Posted by tephra
well once I get 5.8 out (and yes i am making some progress) I will do the turn off knock sensor for various rev/load ranges
What are the planned changes for 5.8? Now I am all excited, lol
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Old Jul 22, 2008 | 08:13 AM
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Originally Posted by dudical26
What are the planned changes for 5.8? Now I am all excited, lol
https://www.evolutionm.net/forums/sh...d.php?t=349239 ---------------------- Thing is, that knock may be real... you have to think about it's integration with systems like this: https://www.evolutionm.net/forums/sh...&postcount=122
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