Haltech knock level logged values

[smart_garrett]

Hello,

I'm wondering if its normal to have vastly different "knock level logged" values for both of the knock sensors. #1 sensor shows a value of 0 when I start the data log and randomly jumps up to 60 after a few seconds (under normal operation not a WOT pull) and the #2 sensor shows 235 when the data log is started and stays at that value the whole log. These values seem quite stray from each other and don't follow any trends compared to the "knock signal" values, but I'm looking for some input on this.

Thanks

[GTSBoy]

So, either the knock sensor(s) is/are shagged, or there is a metric f**kton of mechanical noise at one end of the engine.

[BK]

Is this an Elite ?  If so the knock signal levels need to be setup with the onboard spectrogram to identify the correct frequency levels for knock for the individual engine. There is a YouTube video explaining about it.

[smart_garrett]

13 hours ago, BK said:

Is this an Elite ?  If so the knock signal levels need to be setup with the onboard spectrogram to identify the correct frequency levels for knock for the individual engine. There is a YouTube video explaining about it.

I was looking at that earlier I thought I would give it a try but I'm on a Platinum Pro

[smart_garrett]

14 hours ago, GTSBoy said:

So, either the knock sensor(s) is/are shagged, or there is a metric f**kton of mechanical noise at one end of the engine.

I swapped them around I've yet to start the motor but I will see if the values swap.

[Dose Pipe Sutututu]

I'm going to be honest here, I don't think the knock control for the Platinum Pro works properly, I've never been able to get it ready or log correctly.

[True Slide]

1 hour ago, Dose Pipe Sutututu said:

I'm going to be honest here, I don't think the knock control for the Platinum Pro works properly, I've never been able to get it ready or log correctly.

I feel the same. I dont trust it enough to tune with

[BK]

1 hour ago, Dose Pipe Sutututu said:

I'm going to be honest here, I don't think the knock control for the Platinum Pro works properly, I've never been able to get it ready or log correctly.

What about the Elite ? I know Matt from Haltech has the video trying to explain how to set it up and implement it as mentioned. But after talking to a few of the Haltech tech supports they mentioned that basically no one turns on the knock control, so why have it ?

You had any success in this area ?

[Murray_Calavera]

I can confirm, the knock control in the pro plug in is useless. It doesn't actually detect knock, all it does is detect noise. 

The knock control in the elite series is vastly improved and actually useful. 

There would be plenty of features that people don't turn on, it doesn't make it useless. 

I would imagine that a lot of tuners don't spend time setting it up as the customers are not prepared to spend the $$ on it. It's one of those things, if the tune is conservative and in the life of the car never sees any knock, then due to cost/benefit it doesn't get setup. 

[Dose Pipe Sutututu]

4 hours ago, BK said:

Haltech tech supports they mentioned that basically no one turns on the knock control, so why have it ?

As @Murray_Calavera has said, no one wants to pay for it and also with the usage of E85 you tend to know when the motor knock.

Power will drop with more timing, where as with 98RON you tend to still make power with more timing however might be in the knock range already.

[smart_garrett]

Thanks for the info guys, appreciate it. I had the timing at high rpm down to about 15* and it was still showing plenty of knock with 11.2 afrs, and race fuel. So I was getting a feeling that it couldn’t be right. 

[joshuaho96]

On 12/23/2020 at 1:50 PM, smart_garrett said:

Thanks for the info guys, appreciate it. I had the timing at high rpm down to about 15* and it was still showing plenty of knock with 11.2 afrs, and race fuel. So I was getting a feeling that it couldn’t be right. 

Look at the spectrograph view, if turning down the timing has no visible change in the knock sensor (and you know the knock sensor signal is good) then it's probably calibrated wrong.

[BK]

18 hours ago, joshuaho96 said:

Look at the spectrograph view, if turning down the timing has no visible change in the knock sensor (and you know the knock sensor signal is good) then it's probably calibrated wrong.

The guy has a Platinum not Elite, so I don't believe he has the spectrogram like the Elite series does.