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Thread: Why does my OLSD tune keep changing its mind??

  1. #1
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    Why does my OLSD tune keep changing its mind??

    I notice a lot at idle...sometimes its running 12.2(esp after hot starts) sometimes its running 14.7 and while driving sometimes its around 14afr and sometimes its around 18...any ideas? Im new to this whole tuning thing so im sure theres something im missing...
    2018 Infiniti Q60s


    2004 350z/LS2: ERL 434ci, 11.8:1,TFS245cc,262/266@113+3,Fast102,NX 102 plate,60#injectors/return w/twin 255s
    Old setup: CNC'd317s, Fast 102, 228/228@114, PT88,83#injectors/full return system. 10.84@138

  2. #2
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    anyone?
    2018 Infiniti Q60s


    2004 350z/LS2: ERL 434ci, 11.8:1,TFS245cc,262/266@113+3,Fast102,NX 102 plate,60#injectors/return w/twin 255s
    Old setup: CNC'd317s, Fast 102, 228/228@114, PT88,83#injectors/full return system. 10.84@138

  3. #3
    Senior Tuner 5_Liter_Eater's Avatar
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    A log of this behavior would help...
    Bill Winters

    Former owner/builder/tuner of the FarmVette
    Out of the LSx tuning game

  4. #4
    Advanced Tuner madvette08's Avatar
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    Whats occuring is that ECM is not really failing the MAF sensor. What you need to do is set codes P0101 to P0103 to 0 - MIL on First Error. Once you get the check engine light, you can then uncheck the SES box for those codes.

    Ian
    2008 Corvette A6 - Comp Cams 231/239 617/624 109 ICL 113 LSA, Patariot Extreme Dual Springs .660", Milled .30" Stock LS3 Heads, Mahle -4cc pistons, FTI 3600 Converter, 1 7/8 kooks cat-less 3 inch X-Pipe, air raid intake, ported TB, SLP Loudmouth I. 512hp/464tq

    2011 Ford Taurus SHO - stock with just a Tune

  5. #5
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    Quote Originally Posted by madvette08 View Post
    Whats occuring is that ECM is not really failing the MAF sensor. What you need to do is set codes P0101 to P0103 to 0 - MIL on First Error. Once you get the check engine light, you can then uncheck the SES box for those codes.

    Ian

    Isnt No MIL still mean throwing the codes? Im still getting the MAF fail codes when I do a VCM scanner code check....
    2018 Infiniti Q60s


    2004 350z/LS2: ERL 434ci, 11.8:1,TFS245cc,262/266@113+3,Fast102,NX 102 plate,60#injectors/return w/twin 255s
    Old setup: CNC'd317s, Fast 102, 228/228@114, PT88,83#injectors/full return system. 10.84@138

  6. #6
    step 1 - injector parameters


    you will be amazed at how everything falls into place when this data is correct.

  7. #7
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    I dont wanna scale my tune by 50%=(
    2018 Infiniti Q60s


    2004 350z/LS2: ERL 434ci, 11.8:1,TFS245cc,262/266@113+3,Fast102,NX 102 plate,60#injectors/return w/twin 255s
    Old setup: CNC'd317s, Fast 102, 228/228@114, PT88,83#injectors/full return system. 10.84@138

  8. #8
    Senior Tuner DSteck's Avatar
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    Quote Originally Posted by Snyper View Post
    I dont wanna scale my tune by 50%=(
    Technically, you have to. If you can't put in the right amount in the fuel injector flow rate table, then you're scaling the tune even if you think you aren't.

    DSX Tuning - Authorized HP Tuners Dealer
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  9. #9
    Senior Tuner mowton's Avatar
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    Quote Originally Posted by Snyper View Post
    I dont wanna scale my tune by 50%=(
    So you would rather use incorrect data? I think I posted a work sheet for you many threads ago to help. Do it right or struggle, its up to you.

    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
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  10. #10
    Quote Originally Posted by Snyper View Post
    I dont wanna scale my tune by 50%=(
    so you want all these issues you are having to continue?

  11. #11
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    How much are 63# injectors good for?
    2018 Infiniti Q60s


    2004 350z/LS2: ERL 434ci, 11.8:1,TFS245cc,262/266@113+3,Fast102,NX 102 plate,60#injectors/return w/twin 255s
    Old setup: CNC'd317s, Fast 102, 228/228@114, PT88,83#injectors/full return system. 10.84@138

  12. #12
    Advanced Tuner
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    ehh it seemed okay today. I didn't have to mess with anything.
    2018 Infiniti Q60s


    2004 350z/LS2: ERL 434ci, 11.8:1,TFS245cc,262/266@113+3,Fast102,NX 102 plate,60#injectors/return w/twin 255s
    Old setup: CNC'd317s, Fast 102, 228/228@114, PT88,83#injectors/full return system. 10.84@138