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Leaning out bank 2 and random miss

This is a discussion on Leaning out bank 2 and random miss within the General Help forums, part of the LSx Technical Help Section category; This who thing started with what I thought was a bad coil back. I have moved and replaced coil packs ...

  1. #1
    Member bhunter0830's Avatar
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    Leaning out bank 2 and random miss

    This who thing started with what I thought was a bad coil back. I have moved and replaced coil packs on bank 2. I also replaced the plug on the cylinder that was misfiring when diagnostic was ran Misfire #6). I also checked all the plug wires making sure they were snapped on good and tight and swapped out #6 wire with another on that wa not on the engine. When you start the car is starts and runs fine for a moment then the AFR seems to lean out to the point it misses badly. Here's a short video of what it's doing. I'm lost at this point and don't want to just start replacing random expensive parts.

    Last edited by bhunter0830; 06-10-2012 at 11:28 AM.

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    Member MudStainKILLA's Avatar
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    2002 firebird T/A WS6-A4

    are you throwing any codes?
    2002 Trans Am WS.6 A-4:
    Volant CAI, BBK LTs, BBK ORY, SLP LM2, FROST Tune, A/C Heat Delete, AIR Delete

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    Moderator 35th-ANV-SS's Avatar
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    02 35th LE Camaro SS

    I would keep 1 thread only bc now information in here isn't going to be seen in your other thread where people are trying go help.

    Please link the other thread here too so they can see what others suggested.

    I personally would do a compression test at this point.
    It's on jackstands.

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    Member bhunter0830's Avatar
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    Thanks Jon, didn't think about that! I have to replace the OPSU anyways but was waiting until I bought a bigger intake. Funds don't allow that right now, so I m going to start small and work my away up by replacing the OPSU, Intake seals and gaskets, knock sensors and PCV system. I am hoping that by doing that all at the same time I can come across the fix for this issue. I think there may be a possible vacuum leak contributing to this.

    The link below is from the previous conversation and what other's have suggested long with what I have all ready done with troubleshooting.
    SES Flashing, Lean bank 1, Misfire #6 running poorly
    Last edited by bhunter0830; 06-10-2012 at 04:06 PM. Reason: wrong link

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