Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

Can someone look at this cvs log for me??

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Old Nov 10, 2003 | 08:12 PM
  #1  
johnny o's Avatar
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Joined: Aug 2003
Posts: 159
From: Cambridge, Ontario, CANADA
Can someone look at this cvs log for me??

I seem to be getting knock and 4-5 knock retard whenever I get on it. Any idea why?

http://www.darkapex.com/~crimz/johnnyo.csv
Old Nov 12, 2003 | 10:56 AM
  #2  
GetaZforgetGT's Avatar
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Joined: Aug 2001
Posts: 874
From: Carlisle, PA
Could be burst knock.
PCM reads the sudden airflow as knock.
I waged war against this problem awhile ago.
I put in an LT4 knock module in and that seemed to help some.
I set all the burst knock values to Zero.
I also set my knock decay rate way up.

Note that I didn't disable knock, just burst knock.
I just changed the way that the PCM corrects for the "knock" it encounters.
Even though its a pain in the a$$ it could save your engine.
PM me if you have any questions about set your knock decay rate.
BTW, I use TunerCat so I can't help you much with LT1 edit.
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