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Thread: switched to sd but cannot disable maf.

  1. #1
    Tuner in Training
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    switched to sd but cannot disable maf.

    i recently just swapped to sd mode set maf fail to 0 but truck still runs on maf. also thanged p0101 p0102 and p0103 no ses. no error reported. it continous to run using maf.is there something im missing? also noticed my stft isn't working.any help be greatly appreciated.
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    Last edited by silverado08; 02-01-2015 at 05:18 PM.
    2003 swb single cab
    lq4 6.0 243 heads mill .30
    comp cam 224/228
    1 7/8 lt headers
    fast 36LB injectors
    4l80e swap 3500 circle d converter

  2. #2
    Senior Tuner mowton's Avatar
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    Quote Originally Posted by silverado08 View Post
    i recently just swapped to sd mode set maf fail to 0 but truck still runs on maf. also thanged p0101 p0102 and p0103 no ses. no error reported. it continous to run using maf.is there something im missing? also noticed my stft isn't working.any help be greatly appreciated.
    Set Hi Maf frequency fail high to 0 and you need to set P0101-103 to fail on first error....they need to fail to put you into SD. Can disable the SES if you don't want to see the CEL.

    Ed M
    Last edited by mowton; 02-01-2015 at 03:49 PM.
    2004 Vette Coupe, LS2, MN6, Vararam, ARH/CATs, Ti's, 4:10, Trickflow 215, 30# SVO, Vette Doctors Cam, Fast 90/90, DD McLeod, DTE Brace, Hurst shifter, Bilsteins etc. 480/430

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  3. #3
    Tuner in Training
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    thanks for quick reply
    2003 swb single cab
    lq4 6.0 243 heads mill .30
    comp cam 224/228
    1 7/8 lt headers
    fast 36LB injectors
    4l80e swap 3500 circle d converter

  4. #4
    Tuner in Training
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    why doesnt my stft on bank 2 work? my ltft on b2 works
    2003 swb single cab
    lq4 6.0 243 heads mill .30
    comp cam 224/228
    1 7/8 lt headers
    fast 36LB injectors
    4l80e swap 3500 circle d converter

  5. #5
    Senior Tuner mowton's Avatar
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    Cant access the .cfg file you posted. Post a log as well and check .cfg file

    Ed M
    2004 Vette Coupe, LS2, MN6, Vararam, ARH/CATs, Ti's, 4:10, Trickflow 215, 30# SVO, Vette Doctors Cam, Fast 90/90, DD McLeod, DTE Brace, Hurst shifter, Bilsteins etc. 480/430

    ERM Performance Tuning -- Interactive Learning ..from tuning software training to custom tunes
    HP Tuners Dealer- VCM Suite (free 2hr training session with purchase), credits and new Version 2.0 turtorial available
    http://www.ermperformancetuning.com
    http://www.facebook.com/ERMPerformanceTuning

    [email protected]

  6. #6
    Tuner in Training
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    does it work now ?
    2003 swb single cab
    lq4 6.0 243 heads mill .30
    comp cam 224/228
    1 7/8 lt headers
    fast 36LB injectors
    4l80e swap 3500 circle d converter

  7. #7
    Senior Tuner mowton's Avatar
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    Yes, .cfg works. Post a log.....

    Ed M
    2004 Vette Coupe, LS2, MN6, Vararam, ARH/CATs, Ti's, 4:10, Trickflow 215, 30# SVO, Vette Doctors Cam, Fast 90/90, DD McLeod, DTE Brace, Hurst shifter, Bilsteins etc. 480/430

    ERM Performance Tuning -- Interactive Learning ..from tuning software training to custom tunes
    HP Tuners Dealer- VCM Suite (free 2hr training session with purchase), credits and new Version 2.0 turtorial available
    http://www.ermperformancetuning.com
    http://www.facebook.com/ERMPerformanceTuning

    [email protected]

  8. #8
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    Delete your .os files from your vehicles folder, this will force the vcm scanner to repoll for the available pids.