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Thread: 0411, marine intake and 4L80E

  1. #1
    Lifetime Member hquick's Avatar
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    Default 0411, marine intake and 4L80E

    Ok guys,
    I just got my Burb going again tonight after 4 months of working on it.
    I installed the Mercruiser Marine intake (42lb Bosch greentops), 4L80E transmission (with Transgo shift kit), Elec fans and had to install a new diff (Detroit Trutrac). I already have the 0411 PCM and am running COS3.
    I took a small, easy drive and mostly it seemed fine.
    after around a 15min drive I stopped for around 20mins.
    When I started up again, the AFR guage was showing very lean (16+) at idle and the truck was stumbling a little.
    Whilst driving it goes very rich...off scale and again stumbles.
    Seems to happen basically as I accelerate....gently, from low speeds.
    Can someone please have a look at my tune and these logs and tell me if you can see anything in particular?
    I haven't done any tuning for months and am afraid I'm back where I started...ie learning from scratch

    Thanks
    Attached Files Attached Files
    Howard

    YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T
    MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE
    DUCT TAPE.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.


    98 K1500 'HOLDEN' Suburban.
    Custom Whipple SC, Mercruiser Marine intake, 0411 PCM, 4L80E w/shift kit

  2. #2
    Lifetime Member hquick's Avatar
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    Ran a log this morning after checking and changing my injector flow rates to be correct.
    Went through the RAFIG process and it was a fair way out.
    Altered the VE table and interpolated via spreadsheet.

    Any thoughts? Comments?

    Thanks

    Howard
    Attached Files Attached Files
    Last edited by hquick; November 22nd, 2007 at 08:13 AM.
    Howard

    YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T
    MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE
    DUCT TAPE.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.


    98 K1500 'HOLDEN' Suburban.
    Custom Whipple SC, Mercruiser Marine intake, 0411 PCM, 4L80E w/shift kit

  3. #3
    Lifetime Member hquick's Avatar
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    Default

    anybody?
    Howard

    YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T
    MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE
    DUCT TAPE.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.


    98 K1500 'HOLDEN' Suburban.
    Custom Whipple SC, Mercruiser Marine intake, 0411 PCM, 4L80E w/shift kit

  4. #4
    Lifetime Member JezzaB's Avatar
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    Quote Originally Posted by hquick
    anybody?
    Email sent Howard. Good to see your back at it again....

    Jez

  5. #5
    Lifetime Member hquick's Avatar
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    Thanks Jez!
    Feels like I'm starting all over again.
    Howard

    YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T
    MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE
    DUCT TAPE.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.


    98 K1500 'HOLDEN' Suburban.
    Custom Whipple SC, Mercruiser Marine intake, 0411 PCM, 4L80E w/shift kit

  6. #6
    Joe (Moderator) joecar's Avatar
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    Welcome back Howard, you'll pick up in no time...

    Just in case you haven't seen this: showthread.php?t=4661

  7. #7
    Lifetime Member hquick's Avatar
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    Thanks Joe, I hadn't realized that thread had been updated...great info!
    I just ran another log which shows I'm running way too rich but the idle is almost spot on and smooth.
    I have a problem with the truck 'bucking' at around the 2000rpm mark when I try to accelerate.
    I had an EGR code so I set it to 'not reported' along with generator codes.
    I also have 2 P0000 codes????
    Howard

    YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T
    MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE
    DUCT TAPE.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.


    98 K1500 'HOLDEN' Suburban.
    Custom Whipple SC, Mercruiser Marine intake, 0411 PCM, 4L80E w/shift kit

  8. #8
    Lifetime Member JezzaB's Avatar
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    Quote Originally Posted by hquick
    Thanks Joe, I hadn't realized that thread had been updated...great info!
    I just ran another log which shows I'm running way too rich but the idle is almost spot on and smooth.
    I have a problem with the truck 'bucking' at around the 2000rpm mark when I try to accelerate.
    I had an EGR code so I set it to 'not reported' along with generator codes.
    I also have 2 P0000 codes????
    I notice that its pulling alot of timing. Ive seen down to a final timing figure of 1.5deg. One example of noticed is say at one point its commanding 10deg in the high octane timing table, then the boost timing table pulls out 4 deg then the IAT vs Spark pulls out another 4 deg and in the end you are left with a whopping 2 deg of timing

    Jez

  9. #9
    Lifetime Member hquick's Avatar
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    Thanks Jez.
    How do I fix that?
    Howard

    YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T
    MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE
    DUCT TAPE.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.


    98 K1500 'HOLDEN' Suburban.
    Custom Whipple SC, Mercruiser Marine intake, 0411 PCM, 4L80E w/shift kit

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