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Knock Control only goes down to .50

Posted: Fri Sep 20, 2019 12:58 pm
by Jasonvictory86
Hi!
My Knock Control Value only goes down to .50. It looks like a software limitation and not my driving habits.

Can you take a look?

Thanks!
- Jason

Re: Knock Control only goes down to .50

Posted: Fri Sep 20, 2019 1:45 pm
by KTuner
Right. That's not something we change in Honda's settings. You have access to change knock retard and ignition values, so it's not relevant.

Re: Knock Control only goes down to .50

Posted: Fri Sep 20, 2019 2:19 pm
by Jasonvictory86
Would I set the Knock Retard table to 0 negate it? Or would setting to 5 compensate the the control value of .50?

Also, what happens if I do have a knock? I thought the car would pull timing if knock is detected by default.

Thanks!
- Jason

Re: Knock Control only goes down to .50

Posted: Fri Sep 20, 2019 3:01 pm
by KTuner
I don't think you've read the help section for this logic.

http://ktuner.com/KTunerHelp/ignition_t ... ontrol.htm

Re: Knock Control only goes down to .50

Posted: Fri Sep 20, 2019 3:41 pm
by Jasonvictory86
I did read it but it is still confusing.

How did you get the "knock limitation table value" to 2.0 in the example?

In the example picture, the only value with 2.0 is at MAP .2bar @ 5000 rpm.

Re: Knock Control only goes down to .50

Posted: Fri Sep 20, 2019 3:46 pm
by KTuner
It says "Say in this example that we have", because it's an example.

Re: Knock Control only goes down to .50

Posted: Fri Sep 20, 2019 4:51 pm
by Jasonvictory86
Ok, I re-read it, took a look at my logs with actual ignition, and got some good ol' pen and paper and makes more sense now you I know the value of 2 is just an example.

One other thing, I noticed there's no boost table visible for my Fit. Is that something that can be added or is the last value (.02 psi) carried throughout the rest of the boost table?

Thanks!
- Jason

Re: Knock Control only goes down to .50

Posted: Fri Sep 20, 2019 6:58 pm
by KTuner
As the tables are interpolated, if you exceed the last column that is what is used.

Re: Knock Control only goes down to .50

Posted: Sat Sep 21, 2019 12:20 am
by Jasonvictory86
Thank you!