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Random Knock Control Spikes

Shankmeyster

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Been seeing this a lot lately, just spike to .7 earlier and the other night it jumped from .69 to mid .9's in a matter of seconds. I noticed before on my V2 that the knock count would flicker into the 1000s for just long enough to see it and go back to the single digit that it was at. Don't know if that could be causing it as this has happened while driving normally and no hard accelerations. I'm gonna grab a couple datalogs tomorrow on the way to work and home. Also don't know if I need to replace the knock sensor or check the wiring.
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Shankmeyster

Shankmeyster

Senior Member
Joined
Mar 15, 2017
Threads
33
Messages
1,992
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382
Location
AZ
Vehicle(s)
23 Si
Well I changed out the spark plugs because of this and a hesitation issue that I have been having for months and now the K Control is locked at .49 and hesitation is basically gone. I wonder if I had a bad batch or possibly counterfeit NGKs in there. Was seeing misfires on 2 and 3 as well.
 
 




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