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Thread: Vortec into Open Loop?

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    Lifetime Member GAMEOVER's Avatar
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    Default Vortec into Open Loop?

    How can I force(if possible) my Vortec controller into Open Loop? Is it possible to run Vortec OS's in SD mode?
    Last edited by GAMEOVER; October 5th, 2008 at 06:41 PM. Reason: 1
    2008 2WD Ext.Cab Silverado 1500 6.0 V-MAX E38(L76) & T42(4L70E) MAF Only CL Corvette Servo AFE CAI INNOVATIVE LM-2 WBO2

    FLASHSCAN V2 & AUTOCAL

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    Lifetime Member GAMEOVER's Avatar
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    Nevermind, I got it (OL) DAMN!!!SD is the shit
    2008 2WD Ext.Cab Silverado 1500 6.0 V-MAX E38(L76) & T42(4L70E) MAF Only CL Corvette Servo AFE CAI INNOVATIVE LM-2 WBO2

    FLASHSCAN V2 & AUTOCAL

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    Lifetime Member GAMEOVER's Avatar
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    Well after attending the EFI Live class in Temecula, CA this past weekend I figured out that I was never in SD mode:( just no MAF(wrong parameters enabled & disabled) Has anyone succesfully gotten a Vortec 98-00 pcm in SD. I'm really regretting using my 1998 s-10 V6 as my guinea pig...I should have used an LSx based vehicle with a V8...dangit
    Last edited by GAMEOVER; October 16th, 2008 at 12:23 AM. Reason: spelling
    2008 2WD Ext.Cab Silverado 1500 6.0 V-MAX E38(L76) & T42(4L70E) MAF Only CL Corvette Servo AFE CAI INNOVATIVE LM-2 WBO2

    FLASHSCAN V2 & AUTOCAL

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    Lifetime Member GAMEOVER's Avatar
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    I was going to try to attemp the auto ve but there are quite a few tables missing in the Vortec controller as opposed to the LS1 type controller...
    2008 2WD Ext.Cab Silverado 1500 6.0 V-MAX E38(L76) & T42(4L70E) MAF Only CL Corvette Servo AFE CAI INNOVATIVE LM-2 WBO2

    FLASHSCAN V2 & AUTOCAL

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    EFILive Reseller wait4me's Avatar
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    If you have no maf on your vehicle then it is in speed density if it is running.
    "If you can leave a black mark on the pavement, from the exit of one corner to the braking point of the next one, you have enough horsepower."

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    Lifetime Member GAMEOVER's Avatar
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    Really... Man, I'm confusing myself. I guess what I was trying to do is put my truck in SD via the autove tutorial. That's when I figured out that most of the tables, that are talked about or referenced to, in the Autove tutorial, weren't available in the Vortec Controller...
    Last edited by GAMEOVER; October 16th, 2008 at 07:09 AM. Reason: oops
    2008 2WD Ext.Cab Silverado 1500 6.0 V-MAX E38(L76) & T42(4L70E) MAF Only CL Corvette Servo AFE CAI INNOVATIVE LM-2 WBO2

    FLASHSCAN V2 & AUTOCAL

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    Lifetime Member ChipsByAl's Avatar
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    Gameover, can you log commanded AFR? If so you may be able to do an AutoVE on your PCM. Disconnecting the MAF and both front O2 sensors will put the engine in open loop/speed density. It might not like it, but you can try. Log the Map, RPM, BEN, and commanded AFR. Create a map and see how it does. You might have to ignore DFCO enleanments. Of course repinning your harness and going with the 411 PCM would make the AutoVE process and other tuning much easier.
    Al
    "Trash that carb and get Injected!"

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    Lifetime Member GAMEOVER's Avatar
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    Yes, I can log command AFR. I will give it a try. Thanks.......
    2008 2WD Ext.Cab Silverado 1500 6.0 V-MAX E38(L76) & T42(4L70E) MAF Only CL Corvette Servo AFE CAI INNOVATIVE LM-2 WBO2

    FLASHSCAN V2 & AUTOCAL

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    Lifetime Member Aloicious's Avatar
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    Quote Originally Posted by ChipsByAl View Post
    Of course repinning your harness and going with the 411 PCM would make the AutoVE process and other tuning much easier.
    yup, I love my 411 in the '96...

    make sure the MAF is actually failing and sending you into SD mode (MAF will set a code when it fails, I forget the actual code # though)

    but like wait4me said, if you don't actually have a MAF and its running, you're in SD mode.
    1996 c1500 gen1e 5.7L - the "LS31", 24x CNP, LS2 coils, modified T56, 12200411PCM running COS3, zz4 cam, custom MPFI, etc. coming soon: Twin Turbos

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    Lifetime Member GAMEOVER's Avatar
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    Chips by Al,
    Thanks...I got it to run in SD-Open Loop. My truck wasn't too bad. It was very drivable. WOW... Measured AFR(11.5) Command AFR(14.63).........
    EDIT: *measured AFR 15.5* *command AFR 14.63*
    Last edited by GAMEOVER; October 29th, 2008 at 01:19 AM. Reason: spelling, values
    2008 2WD Ext.Cab Silverado 1500 6.0 V-MAX E38(L76) & T42(4L70E) MAF Only CL Corvette Servo AFE CAI INNOVATIVE LM-2 WBO2

    FLASHSCAN V2 & AUTOCAL

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