Engine knock
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This is a discussion on Engine knock within the Maintenance, service, and repair forums, part of the Tutorials & DIY category; How's it going everyone? I'm getting -5.6 knock on my accessport, I was told it may be a ringland but ...

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    Engine knock

    How's it going everyone? I'm getting -5.6 knock on my accessport, I was told it may be a ringland but I'm not losing any power. What could it be? Thanks in advance!


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  3. #2
    STinfection WRX-maniac's Avatar
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    Very hard for us to answer this question. It could be a number of things. We need a lot more information to be able to help. Like driving condition, gear, rpms the knock occurred, up hill/down hill, what kind of car it even is, what all modifications are done to it. And even with these things it will be hard to pinpoint the cause. Best bet it to upload a log for us to take a look at.
    Stink-Eye Mob #301
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    Quote Originally Posted by WRX-maniac View Post
    Very hard for us to answer this question. It could be a number of things. We need a lot more information to be able to help. Like driving condition, gear, rpms the knock occurred, up hill/down hill, what kind of car it even is, what all modifications are done to it. And even with these things it will be hard to pinpoint the cause. Best bet it to upload a log for us to take a look at.
    Well it's an 08 WRX I was getting the -5.6 in 4th gear at around 3k rpm. There's an accessport, exhaus,t the boost is turned up a little, 38 mm wastegate. That's pretty much it. I'll have to get the logs off of it and upload it.


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    STinfection WRX-maniac's Avatar
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    Has the car been properly tuned for these mods? The accessport OTS maps will not support some of you mods.
    Stink-Eye Mob #301
    2012 WRB STi Limited Sedan
    2011 WRB WRX hatchback---Retired and traded.
    http://www.clubwrx.net/forums/builds...sti-build.html <---- My STi build thread
    http://www.clubwrx.net/forums/builds...ld-thread.html <----My WRX build thread

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    Quote Originally Posted by WRX-maniac View Post
    Has the car been properly tuned for these mods? The accessport OTS maps will not support some of you mods.
    The guy I bought it from got it tuned professionally, I'm planning on getting it retuned in a couple weeks.


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  8. #6
    STinfection WRX-maniac's Avatar
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    Well I would let your tuner know of the knock issues and go from there. If you post a couple logs on here I will still take a look for you.
    Stink-Eye Mob #301
    2012 WRB STi Limited Sedan
    2011 WRB WRX hatchback---Retired and traded.
    http://www.clubwrx.net/forums/builds...sti-build.html <---- My STi build thread
    http://www.clubwrx.net/forums/builds...ld-thread.html <----My WRX build thread

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    You may have already, But I would also Email Cobb Support. They respond very quickly. (Via email) I send in Datalogs and they look at them for discrepancies or explain questions you may have.

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    Quote Originally Posted by WRX-maniac View Post
    Well I would let your tuner know of the knock issues and go from there. If you post a couple logs on here I will still take a look for you.
    I don't have the software for the accessport on my computer.


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    Quote Originally Posted by Rexbeast39 View Post
    You may have already, But I would also Email Cobb Support. They respond very quickly. (Via email) I send in Datalogs and they look at them for discrepancies or explain questions you may have.
    I'll email them and see what's going on.


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