Knock in Cylinder 2

FlashPro questions & answers specific to the 2006-2011 Americas Civic Si
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MorningStar
Posts: 6
Joined: Tue Apr 26, 2016 10:39 pm

Knock in Cylinder 2

Post by MorningStar »

I've seem to have got most if not all knocks out of the other three but cylinder two for some reason seems to have knocks in it an can't seem to figure out why. Got it down but still has some, it only really happens when I'm mid throttle. The kcount today was eight from thirteen as of yesterday. Going down but not out yet. What do you guys think is the issue?

I have trimmed some fuel from the cylinder an gonna trim the ignition when I get off work tonight. Anything else I should try doing.
MorningStar
Posts: 6
Joined: Tue Apr 26, 2016 10:39 pm

Re: Knock in Cylinder 2

Post by MorningStar »

I got all the knocks out except for a occasional knock here an there but so far none today. Only had 2 yesterday. I switch calibrations from K&N to Injen but I run a AFE Takeda SRI. But Injen an AFE are pretty similar. I also reduced the ignition of cylinder 2 back 1 and it evened out the whole thing and and like I said none today. Probably took my ECU a little bit to relearn the new calibration which is why I had some last night.
shind3
Posts: 109
Joined: Mon Jun 30, 2014 8:02 am
Location: Pittsburgh, PA

Re: Knock in Cylinder 2

Post by shind3 »

This cylinder 2 knock on recent 4 cylinder Hondas is the greatest mystery I've ever come across. I wonder what the knock window start/end tables look like across the 4 cylinders. Also, the knock signal allowable noise ceiling may be set too low for Cylinder 2.
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