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Thread: Ats-v kr wont stop!

  1. #1
    Potential Tuner
    Join Date
    Apr 2021
    Posts
    7

    Ats-v kr wont stop!

    I have been battling KR and the only mod i have is catless downpipes. I have pulled upwards of 6-8* of timing in most areas but just can't get KR to stop popping up. I have zeroed out all my burst knock tables but seems every time i start playing the line of exiting vacuum and entering boost a couple degrees of KR just pop up out of no where. I had my afr in the 13's than went down to 12's and still no change. What in the world am i missing?!

  2. #2
    Advanced Tuner
    Join Date
    Aug 2016
    Posts
    386
    Mods that increase the exhaust sound can, in some cases, cause "false KR". Try putting your OE cats back on and see if it goes away.

  3. #3
    Potential Tuner
    Join Date
    Apr 2021
    Posts
    7
    I was playing around a little more today, I seen how fast my afr went from 14.7 to the low 12's, so i set my low octane map a few more degrees back and changed my fuel enrichment back to stock than lowered my ramp in rate power enrichment from 2.0 to 1.5 and was able to correct my KR. When switching from stock cat to catless downpipes the afr was so much leaner.