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  1. wont run properly , the ecm will be trying to...

    wont run properly , the ecm will be trying to accuate the 9th injector that is no longer there so best bet is to get a programmer designed for the delete also without a way to disable the EGR it will...
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    LML basic starting point ????

    I have a 2013 LML and the questions I have are basic so if anyone has the answers please help

    1) can the throttle be set to 100 % safely
    2) what torque mgmt. can be eliminated and on the others...
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    from what I gather from some experience with efi...

    from what I gather from some experience with efi live recently , I installed a dsp5 and the way the system is set up you unpin the two connectors in ecm harness for the fuel temp switch and replace...
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    Made the changes in the VVT map , I went with a...

    Made the changes in the VVT map , I went with a Linear layout. I started to pull timing at 2800 with 1* and worked to 12* at 5600. All I can say is that it is an unbelievable difference got a 5.3...
  5. Also ls3 generally like about 22-24 max you have...

    Also ls3 generally like about 22-24 max you have other adders that could cause you to end up with more timing than needed
  6. Sounds to me that the knock is being caused by a...

    Sounds to me that the knock is being caused by a lean condition . You put headers on and now the engine is breathing easier , I would look at the logs where it is knocking and then referance the...
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    Go to areas where knock starts and pull a degree...

    Go to areas where knock starts and pull a degree out of that cell. Alot of times a degree will escalate to more in the sequential cells after even when there is nothing actually knocking there . You...
  8. You can raise pressure to a point t but if your...

    You can raise pressure to a point t but if your pump lacks the volume required to Maintain the pressure it will not hold steady you probably will need to upgrade your pump and wiring harness to push...
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    so with that i will take my time and build the...

    so with that i will take my time and build the map slow and methodicly . one final question in the intake base map are all the numbers represented retard numbers . if so is there a way to advance the...
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    and now the #2 injector is leaking again nothing...

    and now the #2 injector is leaking again nothing lose and new lines and seals ??????? truck has a dam ghost in it
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    would these be the intake base angle maps ; take...

    would these be the intake base angle maps ; take the 6.2 maps and copy and paste them to my 5.3 map
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    View Post

    If I remember right yours starts to retard at 4000RPM, is maxed out at 8 degrees (of retard) and does not even reach 8 until 6400RPM. GEN4 6.0 all seem to start to retard at 3800RPM and reach a max...
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    there is no fluctuation in the idle like FPR is...

    there is no fluctuation in the idle like FPR is noted for, and already replaced FPRV with a FPRV block off so I feel that those are good but it is giving symptoms of fuel starvation under load...
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    so download a 6'2 file and copy and [paste the...

    so download a 6'2 file and copy and [paste the maps for retart on cam ??? what section lable do i need to go to to find it
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    so if it is advanced 2deg to start and retards...

    so if it is advanced 2deg to start and retards 8deg total it would end up 6 total retarded . and I could go as far a 12 retarded . and this is good for 5.3 . now the question is how to make the...
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    this was not tuned been trying to help him get...

    this was not tuned been trying to help him get back to texas so i can hook up and help , new problem today #2 injector leaking fuel again just replaced that injector. looking for help with where...
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    what do u think about the tune , you replied to...

    what do u think about the tune , you replied to my post earlier on the variable cam just curious on your thoughts any place you see for improvement
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    So on the WOT setting on the stock cam what would...

    So on the WOT setting on the stock cam what would be the max safe limits to advance or retard the cam , would like to try a little but want to be on the safe side trying new things. from old school...
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    Variable cam settings ???

    I am wondering how to adjust the variable cam setting and What the limits are and how to go about making changes safely . I have a 2011 silverado 1500 5.3 flex fuel .

    also want to know later if I...
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    If it is fluctuating at an idle just slightly...

    If it is fluctuating at an idle just slightly every three to five seconds a slight surge then drop it is a FPR causing the issue
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    64946I tuned the maf and vve both, but found that...

    64946I tuned the maf and vve both, but found that the shell gasoline was the problem had upwards of 20 percent alcohol content and took a sample from tank and allowed it to sit for a week and...
  22. Well I found out that normal pressure for this...

    Well I found out that normal pressure for this truck is 43.5 to 48 psi and that you can change the pressures in the fuel system section. BUT i would not recomend a change higher that 48 psi , reason...
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    must be done in a specific order check the...

    must be done in a specific order check the stickys there is great deal of good info on how to do a relearn
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    also have checked the wiring in the harness for...

    also have checked the wiring in the harness for any frays or chafing and is all good
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    LLY going into limp mode need help

    I have been helping a friend with his LLY duramax in a 2004 5500 gmc topkick. The problem we are having is that the diagnosis per the diagnostic tool is low rail pressure. but here are the kickers to...
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