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Thread: start up commanded afr....

  1. #1
    Tuner in Training
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    start up commanded afr....

    I know the OL EQ ratio table plays into this but are there other tables that play into it? I have my OL EQ ratio table set to 1.0 and I'm still seeing commanded afr's of 11.7 on start up.

  2. #2
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    11.7 is really rich for startup. Do you have any logs of this happening?
    2012 Chevy Cruze A6 1LT RS

    Formerly - 2004 GTO, 2002 Z28, 2007 Colorado, 2008 Silverado

  3. #3
    Tuner in Training
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    yeah, on the laptop. I'd have to move them over to the pc. It's commanding 11.7 even with the OL eq table set at 1.0. I'm just not sure what other tables will make it command that rich of an afr for start up. It climbs up out of that 11.7 fairly quick but the issue is that I want to change that commanded and the eq table didn't do much for me.

  4. #4
    Tuning Addict WS6FirebirdTA00's Avatar
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    yes, post the tune
    Sulski Performance Tuning
    2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
    2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB

  5. #5
    Afterstart Enrichment vs ECT would be my guess but as per ^^^, why do you want to change it anyways. You can always speed up the decay if you wish it approach the OLFA table more quickly.

  6. #6
    Tuner in Training
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    I got it worked out. Thanks.

  7. #7
    Advanced Tuner colamotas's Avatar
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    how did you work it out?
    SRT 10 without any mods. But still hella fun too drive.
    93 fox coupe with a 427 in the works.

  8. #8
    I would like to know as well mine is commanding 10's at startup
    Silverstone 93 Mazda Rx-7 ls-6 swap

  9. #9
    Tuning Addict WS6FirebirdTA00's Avatar
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    OLFA+afterstart enrichment
    Sulski Performance Tuning
    2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
    2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB

  10. #10
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    I'd be interested to know which table modifies the airflow that corresponds with the afterstart enrichment.

    I'm talking about how your car opens your IAC full tilt for about a minute. I would like to lessen that because it is ANNOYING to hear my car whistle when it's cold.
    2012 Chevy Cruze A6 1LT RS

    Formerly - 2004 GTO, 2002 Z28, 2007 Colorado, 2008 Silverado

  11. #11
    Tuning Addict WS6FirebirdTA00's Avatar
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    startup and frictional airflow
    Sulski Performance Tuning
    2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
    2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB

  12. #12
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    Quote Originally Posted by WS6FirebirdTA00 View Post
    startup and frictional airflow
    So I would just lower the decay values to make that end earlier? I guess I'll have to poke around and see what to lower to make it not peg the IAC like that too.
    2012 Chevy Cruze A6 1LT RS

    Formerly - 2004 GTO, 2002 Z28, 2007 Colorado, 2008 Silverado

  13. #13
    Tuning Addict WS6FirebirdTA00's Avatar
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    increase the decay
    Sulski Performance Tuning
    2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
    2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB

  14. #14
    Tuner Engine_HP's Avatar
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    my car

    heres a scan for my camaro at startup im seeing very lean mixture before i enter CL.


    how can i increase my fuel when OL start up ?
    Chevrolet LS1 Camaro 1999 M6



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