Spark being pulled all the way to minimum spark advance B5915

[barbermi]

Hi all,

I have been trying to tune my car and found the spark advance was being pulled way down while doing power runs. its being pulled so far down there is a noticeable slump in the power then it comes back on strong! I checked out the logs and have noticed the spark advance is being pulled down to the minimum spark advance as per B5915. I cannot for the life of me find what is pulling all of my timing. as you can see in the screen shot here the timing drops right off then comes back for an unknown reason? It has done this several times. Please see attached tune, Log and screen shot to see what I am talking about.

Can burst knock pull this much timing out? I have since "disabled" burst knock and all traction control stuff but I am unsure if the PCM would pull it down this far? I am yet to try the new tune.

Any help would be greatly appreciated as I have spent hours going through my tune and I cannot find the issue.

Regard,

Mark

[limited cv8r]

Try logging some of the EST Spark pids to try and see what is pulling your timing.

[barbermi]

Thanks I will do. Its been doing my head in!

[barbermi]

I believe I have found my issue.

I have disabled axle torque reduction and I have not had this issue since.

[joecar]

I believe I have found my issue.

I have disabled axle torque reduction and I have not had this issue since.

Which tunetool parameter/table id...?

[barbermi]

Hi Joe.

I disabled B6601. Axle torque limiting.