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Knock sensor issue

Discussion in 'Integra' started by Since 1983, Sep 23, 2009.

  1. Since 1983

    Since 1983 Member

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    hey all, I just swapped a gsr motor into my del sol, The motor is a 12:1 compression motor with a light tune and its tuned to run on 93 octane, I drove the donor car to my shop to do so with zero issues, I swapped everything into my car and had 87 octane in the tank (about 1/4 tank) I threw in some fuel additive and drove it nicely to waste the existing fuel before refilling with 93 octane. I have now replaced the 87 octane with 93 octane and I am stilling getting this code, if I turn the car off then turn it back on it goes away, and if I drive the ca without hitting vtec I get no code, the instant vtec engages it throws the code, as I said the donor car dd not throw this code, ad I checked that cel too, it wasn't blown or anything. any ideas?
     
  2. D15Beater

    D15Beater HNFTuning

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    Have you tried backing off your ignition timing? To much advance ignition timing on high compression engines can cause pre ignition or detonation. :(
     
  3. hale97

    hale97 New Member

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    or maybe try a bottle of octane boost,maybe the 93 octane just isnt a high enough rating
     
  4. Ronny Cage

    Ronny Cage DaughterTestedMomApproved

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    im running into this issue on a b16a in a 93 cx hatch as well thats in my shop. but we've only ran 93 octane and its not a high compression motor its pretty much a base b16 with a catback. not sure exactly what were doing to fix it as my buddy is working on it (his car) sooo we will see.
     
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