2015 civic si knock retard P0328
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Thread: 2015 civic si knock retard P0328

  1. #1
    Greenhorn
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    2015 civic si knock retard P0328

    Okay so I have an issue with my si. I'm getting up to 26 degrees of knock retard. I've replaced my knock sensor as I thought that was the problem. It turns out that wasn't the issue. I've gone back to a stock tune and I'm running the highest octane fuel I can get in my area. I'm getting P0328 error code. Can anyone help me out with solving this problem? I miss having my car

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  3. #2
    Big Pimping!!! dpetro1's Avatar
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    Any mods? Any other CEL?

    I would check the wiring to the knock sensor. May have a broken wire or something grounding out.

    Sent from my SM-G920V using Tapatalk

  4. #3
    Super Mod's Pet JDMisland's Avatar
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    Well I think for you to better understand what you're dealing with(since we don't have any information on your MODs list) is a knock sensor is a microphone sensor. Meaning something can be loose i.e. suspension parts that can be mimicking the same frequency as the knock sensor is supposed to be picking up. So that will be your best bet is to inspect the undercarriage of your vehicle.
    2015 Civic Si MSM FB6
    -DW Fuel Return
    -Radium Fuel Rail
    -Hondata FlashPro
    -Vibrant Oil Catch Can
    -Orsen Shield Skid Plate
    -RBC W/ Ported Runners
    ​-Boomba Torque Dampeners
    -ACUITY Shift Linkage Bushings
    -FullRace Exhaust W/ TS Mounts
    -Makspeed Turbo Kit, COMP BB 6062
    Suspension
    -BuddyClub Camber Arms
    -Ultimate Racing 4pt Strut Brace
    -Ultimate Racing 3pt Trunk Brace
    -BuddyClub Sport Spec Coils W/ Poly Bushings & Swift Springs




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  6. #4
    Platinum Member Teeps's Avatar
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    This question might be better served in the ECU Tuning section.

    Or click the link in my sig line and obtain the troubleshooting for the P0328.

    Based on info in post #1, it could be a wiring problem or a faulty ECU...
    Go here: Hidden Content
    Because misinformation is far worse; than NO information...


  7. #5
    Greenhorn
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    Nova Scotia
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    Well right now the only mods I have are my FlashPro and a Skunk2 Catback megapower RR.

    What would be the best way to inspect the wiring to the knock sensor?

  8. #6
    Big Pimping!!! dpetro1's Avatar
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    Visually inspect wires for anything frayed or broken.
    Use a multimeter to check for continuity. You will need a wiring diagram or ecu pinout to know which is the knock sensor wire

    Sent from my SM-G920V using Tapatalk

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