Changed Knock Sensor - Now getting knock and high Knock Control on same tune

FlashPro questions & answers specific to the 2006-2011 Americas Civic Si
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07siiii
Posts: 16
Joined: Fri Dec 20, 2019 3:44 pm

Changed Knock Sensor - Now getting knock and high Knock Control on same tune

Post by 07siiii »

I had a knock sensor break in half. I replaced it with a new one and now the knock level is much higher in the same conditions as before.

Knock level was peaking at 15% during cruising before and 55% at WOT. With the new sensor it's now 25% when cruising and 75% at WOT.

Knock Control would stay at 54% before and is now going to 100%. It is now retarding timing and also registering knocks in all cyl. Never seen it register a knock with the old sensor.

Do the knock tables need to be adjusted when changing knock sensors? Seems like the new one is "more sensitive".

I put the "return to stock tune" back on and it also has the knock control go to 100%.

Some of these knocks are at low RPM and some are at high RPM.

Ill attach logs of the new sensor and old sensor.
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Spunkster
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Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: Changed Knock Sensor - Now getting knock and high Knock Control on same tune

Post by Spunkster »

based on the fact the other sensor was broken I would be inclined to trust the new one as long as it is an OEM part.
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