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  1. #1
    Mod-er-raider 07-Civic-Si's Avatar
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    who wants to read some plugs?

    Started to get a miss fire last week. I changed my plugs today and this is what came out.



    whats going on with the third one?

  2. #2
    is a white guy ThatWhiteGuy's Avatar
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    u need to get rid of that POS columbia tune and get a real TUNE
    Don't call 911
    grab the 1911 w/10 round wilson combat mag

    Quote Originally Posted by bigmike View Post
    Doug is an all around worthless, ignorant, douche...

  3. #3
    OF Senior Member godzhand's Avatar
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    maybe spark plug wire on the cylinder with the black ass tip only time I see that is when the cylinder is getting fuel but fuel is not being ignited properly and the flame front is weak causing the plug too be caked with unburned fuel. +1 on a Better tuner also Get Wikkedv16 on this forum to do it hes very good man and cheap.
    Last edited by godzhand; 08-01-2010 at 10:59 AM.

  4. #4
    Mod-er-raider 07-Civic-Si's Avatar
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    Quote Originally Posted by 1lowSi View Post
    u need to get rid of that POS columbia tune and get a real TUNE

  5. #5
    Mod-er-raider 07-Civic-Si's Avatar
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    i do need a re tune but i need to get some real injectors first

  6. #6
    is a white guy ThatWhiteGuy's Avatar
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    Don't call 911
    grab the 1911 w/10 round wilson combat mag

    Quote Originally Posted by bigmike View Post
    Doug is an all around worthless, ignorant, douche...

  7. #7
    OF Senior Member Stupid's Avatar
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    Are they all gapped the same? and yea ditch the Colombia tune, what ems are you running?
    Its not the wand that makes the magic, Its the magician.
    -iBUILT-

  8. #8
    Very cereal Catdaddy's Avatar
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    checked cylinder compression?
    "The lead car is absolutely, truly unique, except for the one behind it which is exactly identical to the one in front of the similar one in back."


    Quote Originally Posted by ustink007 View Post
    girl? who needs them when you can have imaginary ones, especially ones in a computer game........... yes i'm a nerd/dork/techie/loser/moron/stupid bitch.
    Quote Originally Posted by Donkey Elephant View Post
    i take things way too literal sometimes.

  9. #9
    is a white guy ThatWhiteGuy's Avatar
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    Quote Originally Posted by catdaddy77 View Post
    checked cylinder compression?

    it was just rebuilt like 3-4 weeks ago
    Don't call 911
    grab the 1911 w/10 round wilson combat mag

    Quote Originally Posted by bigmike View Post
    Doug is an all around worthless, ignorant, douche...

  10. #10
    Mod-er-raider 07-Civic-Si's Avatar
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    Quote Originally Posted by TC527 View Post
    Are they all gapped the same? and yea ditch the Colombia tune, what ems are you running?
    yea all gaps are the same .030

  11. #11
    OF Senior Member godzhand's Avatar
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    Carbon Fouled

    Carbon fouled plug tipSoft, black, sooty, dry-looking deposits indicate a rich air fuel mixture, weak ignition or wrong heat range spark plug (too cold). These carbon-based deposits are conductive, much like oil fouling, and will allow the voltage coming out of the center electrode of the spark plug to track down the core nose rather than jumping the gap. This will result in an engine misfire and further aggravate the carbon fouled condition. Check for correct plug heat range. On fuel injected engines, check for sticking injectors, malfunctioning cold start valves and/or circuits. Also check for correct fuel pressure specifications. On computer controlled vehicles, the "limp home" computer mode will always result in a rich condition. Therefore, it is imperative that you check the operation and condition of the on-board computer system. On carbureted vehicles, check choke and choke pulloff, high float level, and needle and seat condition. On all engines, severe vacuum leaks can decrease manifold vacuum, resulting in a rich condition. Weak and/or damaged secondary ignition systems will fail to spark across the gap lowering combustion chamber temperatures and promoting carbon deposits. This condition could also result from continuous low speed driving or poor cylinder compression.

  12. #12
    OF Senior Member godzhand's Avatar
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    since it is really only on the one cylinder I'm going with improper spark gap, bad spark plug wire, or sticking injector. Use a DMM on the spark plug wire and check it, Soak the injector in mineral oil put it back in and give it a few taps, and check the gap on the plugs.

  13. #13
    Mod-er-raider 07-Civic-Si's Avatar
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    Quote Originally Posted by catdaddy77 View Post
    checked cylinder compression?
    yea i just re ringed it for some freshing up mostly because i wanted a reason to take it apart but it brought the compression up from the 160s to the 170s

  14. #14
    OF Senior Member Stupid's Avatar
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    Yea one is def rich but the others are pretty lean what ems are you running.
    Its not the wand that makes the magic, Its the magician.
    -iBUILT-

  15. #15
    OF Senior Member godzhand's Avatar
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    what plugs are you running also heat range. N/a or boost?
    Last edited by godzhand; 08-01-2010 at 11:07 AM.

  16. #16
    Mod-er-raider 07-Civic-Si's Avatar
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    Quote Originally Posted by TC527 View Post
    Yea one is def rich but the others are pretty lean what ems are you running.
    crome

  17. #17
    Mod-er-raider 07-Civic-Si's Avatar
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    Quote Originally Posted by godzhand View Post
    what plugs are you running also. N/a or boost?
    boost

    r5672a-8

  18. #18
    OF Senior Member godzhand's Avatar
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    how much psi

  19. #19
    Mod-er-raider 07-Civic-Si's Avatar
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  20. #20
    OF Senior Member godzhand's Avatar
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    you should be running a smaller gap than .30


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