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Thread: help vortec 350 tbi programming

  1. #31
    Fuel Injected! tamperedchevy's Avatar
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    ive burned a couple tanks of gas and burned over 50 or alot more chips in the last week, and started over with stock ones many times,ARJT or AFCB starters. and read many things over and over and some new things ive found. something is going on in closed loop. opem loop was always great feeling and looks better on the o2 sensor. i can even mash the pedal and waste the tires in open loop. when it hits closed loop all goes to hell and o2 jumps up to .8 areas. my cams not that big but im thinking open loop tune? and shut down closed loop maybe, maybe not guess ill just test that

    oh yeah learned not to mess with ae-cts

  2. #32
    Super Moderator dave w's Avatar
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    Quote Originally Posted by tamperedchevy View Post
    I'm upset??
    I'm not here to upset people. I like to help.

    Maybe we need to get together with network meeting? Free software, like Teamviewer http://www.teamviewer.com/en/index.aspx, is one option I can think of to help with your tuning?

    We can talk on the phone, and we can work on the computer at the same time.

    dave w

  3. #33
    RIP EagleMark's Avatar
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    My favorite starter chip is ASDU and in it is a hint as to why it is better in CL then the other bins.

    Or you could post your bin again and I'll take a peak as to why your having CL issues?

    Do you have headers? Where is O2 sensor mounted?

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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  4. #34
    Fuel Injected! tamperedchevy's Avatar
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    Ha I just made an Asdu starter yesterday. It's weird as soon as I put it in gear it drops out of closed loop.

    Yes headers. W/ heated o2 sensor in collector

  5. #35
    RIP EagleMark's Avatar
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    You have a data log from TunerPro RT yet? Post it up.

    Haven't seen a recent bin? If I could see what your doing I could give you some pointers.

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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  6. #36
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    Quote Originally Posted by EagleMark View Post
    My favorite starter chip is ASDU and in it is a hint as to why it is better in CL then the other bins.

    Or you could post your bin again and I'll take a peak as to why your having CL issues?

    Do you have headers? Where is O2 sensor mounted?
    I did not like ASDU when I ran it.....I had better luck with ARHT or ARJT from a fullsize G-Van and even better luck with the 299 ECM and AWLD. The newer 93+ TBI stuff was even better. I also had very good luck with a 92 Astro 4.3 HO bin with a cylinder select change and BPW recalculation....ASYNC only
    Last edited by Fast355; 04-09-2014 at 08:05 PM.

  7. #37
    Fuel Injected! tamperedchevy's Avatar
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    Quote Originally Posted by EagleMark View Post
    You have a data log from TunerPro RT yet? Post it up.



    Haven't seen a recent bin? If I could see what your doing I could give you some pointers.
    Well I don't really have anything right now don't know which bin to restart with, messed up the others plugging in different combos of AE yesterday, way below stock=pig rich, way way way above stock=pig rich, so that's when I went to asdu. Haven't got anywhere else with that yet. I also lost my CEL, shows codes when attached to laptop, but not on dash(even with stock bin)

    Also I've had my blm almost dead on 128 before, neutral idle is always 108, even with all blms running lean around 130-140,

  8. #38
    RIP EagleMark's Avatar
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    Light on the dash has got to work so you know your chip or emulator is working. With key on it should come on, blink and stay on till engine is started then go off.

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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  9. #39
    Fuel Injected! tamperedchevy's Avatar
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    yeah it stopped doing that bout three four days ago

  10. #40
    Fuel Injected! tamperedchevy's Avatar
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    just fto rt log working. injector duty cycle idle is at 180 percent?!
    Attached Files Attached Files

  11. #41
    RIP EagleMark's Avatar
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    Injector Duty Cycle will only work if you have applied the BPW Patch to your bin before the data log...

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  12. #42
    RIP EagleMark's Avatar
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    Your data log has a Error 51 Prom. So got to fix that before data is any good, you may be in Limp Home Mode...

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  13. #43
    Fuel Injected! tamperedchevy's Avatar
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    CEL light was burnt out with three other lights in the instrument panel.

    about the injector duty cycle....Gotcha thanks

    and on the 51 prom error, is that because i started it without a chip right before that log(that measely log was with a chip tho)just to see if if would. probally stupid but curiosity got the best of me.

  14. #44
    Fuel Injected! tamperedchevy's Avatar
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    will put an actual log on here tomorrow after work wanted to get that check light going again it was buggin me.

  15. #45
    RIP EagleMark's Avatar
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    Quote Originally Posted by tamperedchevy View Post
    and on the 51 prom error, is that because i started it without a chip right before that log.
    That would set an error 51.

    But stored errors can effect logs. After your running and connected just look at Item List and go to Error Codes and make sure all is well. If not clear codes.

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

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