Check out my tune. Cant get rid of KR.

[gao8302]

This is my first post here but i have been a member at performancetrucks.net for a few years now. I just picked up efilive and im a noobie to tuning. I cant seem to get rid of the kr im getting when in boost. Is there something im missing in my tune. I have everything in my sig. Also i have not done any autove tuning because i was told to get the kr problem down before i do this. I have included my tune and recent log for you to look at. This Kr issue in driving me crazy so if there is a efilive god then i hope this problem can be fixed so i can finish with the tuning. In the logs the wideband is hooked up to analog 2.

[Goldfinger911]

What about the 7.4 degrees of KR when you were at 944 rpm with less than 10% throttle? Weird.

Bad sensor(s)? Wiring problem? Engine noise? Incorrect knock sensor calibration?

I am no expert on boosted LS engines (however 2JZGTE's are a different story), I just thought that was strange behavior. I am sure someone will chime in with some advice for you.

[gao8302]

[QUOTE=Goldfinger911]What about the 7.4 degrees of KR when you were at 944 rpm with less than 10% throttle? Weird.

Bad sensor(s)? Wiring problem? Engine noise? Incorrect knock sensor calibration?

Thanks what i dont understand. I havent done anything to the knock sensors. I have to get this figured out. I hope someone will chime in.

[hquick]

Just out of curiosity try this.

[gao8302]

what did you change? Do you see anything wrong with my tune?

[hquick]

I just richened your commanded fuel a tad (like...a very small amount) where you were getting the KR.
If you open the original tune and then load this one as an 'alternative' calibration by clicking on the picture of a file with the red arrow on it under 'view' in the toolbar. You can then click on the double ended red arrow to see the differences. If you double click on the items that come up as differences it will open those items.
Ie...open the commanded fuel table and then toggle between the new and old table by clicking on the two pic's of maps which will appear in the toolbar as CAL and ALT.

[hquick]

By the way....I'm having the exact same problem and our setups are almost the same. Mine's a 5.7L.

[gao8302]

I just noticed that. I will load the new tune and get some logs up for you. Thanks for the help

[gao8302]

So you are working on getting yours tuned as well?

[hquick]

Yes. I seem to be having the same problems. I'm fairly new to this also so I can't give you any deffinitive answers as yet. If I can get rid of my KR....I'll tell you what I did to remove it. I'm currently also receiving a fair bit of help from other members here.
Your fuel just looked a little lean at those points.
It might work...might not...but won't cause any harm.