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Thread: no power enrichment on '06 trucks ??

  1. #1
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    Default no power enrichment on '06 trucks ??

    Because of the release of the 2007 truck line recently I have tuned several 2006 trucks & suv's . (pick-ups-yukons-denalis-tahoes---etc.)
    The problem i am having is that after tuning them and then driving them to log various pids, I can't seem to get the vehicle to operate out of closed loop. The AFR's are always stuck on 14.63 at WOT---the 02 voltages still oscillate at WOT
    and power enrichment mode is never activated---no matter what I've tried to do or change---And i've tried tons on things---I've changed all the normal things--took out all the delays--set the AFR @ RPM at 12.70--set the tps activation at 58% etc etc.

    Do these vehicles ever operate in an open loop type status ( OL-DRI) to activate power enrichment???---Or do they always just run in a closed loop mode??----It seems that a few 06's have taken the changes and allowed me to change PE---but lately almost all won't----Anybody know ? Am I doing something wrong ? or is this the way they operate now??-- THKS Tom

  2. #2
    EFILive Reseller kbracing96's Avatar
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    What about the PE delay? Did you set it to 0?


    Edit, never mind, I missed that part in your post

    Post the tune maybe there's something your missing
    01 ECSB 1/2 ton 4x4 Forged 5.7 LS1 GMC

    Custom KBracing front mounted, BW S480, intercooled turbo


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    What operating system are you running into these problems with? I've never had any problems making PE mode changes on 2006 trucks... 2007 Classics however do need a few more tables added to the calibration...
    2013 Yukon Denali XL - TVS2300, ID1000, E85
    2013 Silverado CCSB 6.2L - TVS1900, DTH 349Y-1-C
    1972 K5 Blazer - LQ4, TVS2300, 4L80E

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    Quote Originally Posted by dc_justin
    What operating system are you running into these problems with? I've never had any problems making PE mode changes on 2006 trucks... 2007 Classics however do need a few more tables added to the calibration...
    hello--the OS # is 12587811-----

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    Interesting. That's the OS I've been having great success with. Don't know what to say...
    2013 Yukon Denali XL - TVS2300, ID1000, E85
    2013 Silverado CCSB 6.2L - TVS1900, DTH 349Y-1-C
    1972 K5 Blazer - LQ4, TVS2300, 4L80E

  6. #6
    EFILive Reseller kbracing96's Avatar
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    Here is his tune file Justin, I don't see anything he missed, but maybe you will
    Attached Files Attached Files
    01 ECSB 1/2 ton 4x4 Forged 5.7 LS1 GMC

    Custom KBracing front mounted, BW S480, intercooled turbo


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    The only thing that I can see is that the PE Map threshold {b3613} is below the allowed limits. This could be causing the problem, but can't be certain...

    Justin
    2013 Yukon Denali XL - TVS2300, ID1000, E85
    2013 Silverado CCSB 6.2L - TVS1900, DTH 349Y-1-C
    1972 K5 Blazer - LQ4, TVS2300, 4L80E

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    Quote Originally Posted by dc_justin
    The only thing that I can see is that the PE Map threshold {b3613} is below the allowed limits. This could be causing the problem, but can't be certain...

    Justin
    The stk setting on b3613 was 16.20---I generally leave this one alone--the 4.4 setting in there now was an experiment to try to fix it--both #'s didn't change a thing--do you have an '06 modified file where the PE works that i could look at ???

    What about the 02 switching points or any tabe in the 02 file that might be suspect ??

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    The attached changes (to a stock tune) are an example of what I would typically make to the enablers.

    Justin
    Attached Files Attached Files
    2013 Yukon Denali XL - TVS2300, ID1000, E85
    2013 Silverado CCSB 6.2L - TVS1900, DTH 349Y-1-C
    1972 K5 Blazer - LQ4, TVS2300, 4L80E

  10. #10
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    Yes I use the exact same method to enable PE---I don't know If it is a problem because I'm still using V1 with the older update of Dec. 15th,2006.
    I just recently downloaded the new version 7.42 of march 15th but have yet to try it on another '06-----ANYONE ????? Anybody know it my software is or was the problem ??

    PS---I have V2 ordered wil be here shortly

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