IF YOU HAVE A MISFIRE CODE ,PLEASE READ THIS!!! - Page 6
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This is a discussion on IF YOU HAVE A MISFIRE CODE ,PLEASE READ THIS!!! within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; You cannot tune for it. You can just disable the DTC's....

  1. #76
    Moderator Donkey's Avatar
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    You cannot tune for it. You can just disable the DTC's.
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  3. #77
    Registered User shadowpr's Avatar
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    Quote Originally Posted by Donkey View Post
    You cannot tune for it. You can just disable the DTC's.
    thank you.

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    Still no progress on my misfire situation. Haven't driven the car in a week but it's still not acting like any misfire I've ever heard or felt. Runs great. What is the possible worst case scenarios? I'm taking it to the shop Monday...trying to wrap my head around the wrist possible stuff....

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    Resident meany-rator 06wrx4me's Avatar
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    IF YOU HAVE A MISFIRE CODE ,PLEASE READ THIS!!!

    Just like to say thanks Donkey. I had a buddy call me in a panic today, his 06 wrx limited failed a smog test on his way to sell the car because of misfire codes on all cylinders. I told him to come over and I'd help him out.

    Car has 92k miles on it and he paid a Subaru dealer to do the 90k service. Read the first page of this thread; cleaned his MAF, checked the plug gap and they ranged from .042-.045. I think the dealer either didn't gap them or put in the NA plugs. I regapd and reinstalled the plugs and cleared the codes. Alternator belt was in horrid condition, so I replaced that too.

    He drove it 80 miles and all the readiness monitors had cleared. Problem solved.
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    Donkey, thanks for the info. Hopefully I'll be able figure out my cause...

  7. #81
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    I have 2009 sti is got a misfire on idle but no power loss still drives like normal just abit hard to take off anyone had this problem or can give some advise
    Last edited by Illesti; 01-28-2013 at 03:45 AM.

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    No power loss still drives like normal

  9. #83
    zax
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    Guys and gals, Donkey clearly stated that the purpose of this post is informative only and not intended to become a question and answer session. If you have a misfire code, please read the first post in entirety. If the action points do not resolve your issue, please post a thread explaining your issue. We will do our best to help you on your way. Thread closed to preserve its sanctity.

    If you have a resolution to the misfire, as Donkey suggested, and it's not listed in the initial post or any subsequent posts, feel free to PM me and I will edit this thread.
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  10. #84
    zax
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    Graciously submitted by user rbblrsn:

    Quote Originally Posted by rbblrsn
    Car: 2006 WRX Limited Wagon, 115K miles, stage 2 Cobb, Greddy 3" exhaust.

    Condition: Car suddenly developed severe stumbling, misfire codes rotating thru cylinders.

    Action: Started troubleshooting per Donkey's post, MAF cleaned, plugs replaced, etc. Found my problem during fuel filter replacement:
    The plastic 1/2 of the twist-together filter canister in the in-tank filter had partially separated from the metal 1/2, and the O-ring was also damaged. Fuel leaked from the resulting gap upon pulling assembly, so I'm sure air could be sucked in also when tank was low or during sloshing from spirited driving. Replaced filter and o-ring, cleared codes and all seems well. There were no obvious signs that it had ever been serviced (lots of dirt on top of the tank) so this may have been a factory issue(??)

    My suggestion for a Possible post update: "Check in-tank fuel filter canister for proper assembly and o-ring integrity to ensure fuel pickup is OK."
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    Cylinder3 Misfire

    ok guys I have a real head scratcher here.

    2008 Impreza 2.5i
    Misfiring in 3
    changed out spark plugs and wire
    new coil pack
    cleaned MAF
    Cleaned Injectors and Flopped 1 to 3

    Here is how the car acts:
    when idling car runs smooth as butter
    under load car wont really accl.
    I can even smash the gas and rpms wont go up fast like they should and when the rpm's finally do reach to about 4,000 the car wont go any higher
    the car is basically undrivable any input would be great appreciated, thank you all for your help

    note I will be doing a compression test in the morning

  12. #86
    Moderator Donkey's Avatar
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    And you read what part of this thread? Did you even read the very first page?
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  13. #87
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    My 03 wrx runs great with no problem but my check engine is still on and the code say all 4 cylinder is misfiring.and when i pound my car the check engine blink 3 times but still runs normal.

  14. #88
    Moderator Donkey's Avatar
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    Quote Originally Posted by rroberrt94 View Post
    My 03 wrx runs great with no problem but my check engine is still on and the code say all 4 cylinder is misfiring.and when i pound my car the check engine blink 3 times but still runs normal.
    And what part of the first post did you read? Specifically the big letters in red..........
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  15. #89
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    Thank you this is the most helpful post I've read... I have a 02 that is misfiring on all cylinders but now I have info to try to figure out the problem myself. thanks donkey

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