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Discussion Starter #1
I just had my local shop complete an air pump delete on my 2012 STi. Car seems to run fine, but now it's giving me a knock sensor P0328 code. Feedback knock on the goes straight to -5.0 under 30%-40% throttle, DAM remains at 1.0 and fine knock learn is 0.0

Any ideas? Also, if someone could let me know the location of this sensor that would be super helpful.

Thanks!
 

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Discussion Starter #5
curious did they reinstall the baro sensor? dunno if lack of baro sensor would lead to that code or not.
I asked him to leave the valve with the baro sensor intact, everything else is removed. I'm running a map with all of the air pump codes disabled

Not sure if this is significant or not, but the feedback knock goes to -5.0 and ONLY -5.0 like an on-off switch. It doesn't change from that value even at WOT.

I can feather the throttle lightly through the RPM range without getting a knock reading, but when the car gets under load thats when I see the knock.
 
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