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  1. Replies
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    One more thing I noticed and forgot to mention,...

    One more thing I noticed and forgot to mention, the fuel trims dont work at all unless i tell the car to run in closed loop through the scanner. Why is it doing this?
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    I prefer working with lambda, but i dont think...

    I prefer working with lambda, but i dont think the lsj has that option like the lnf. Or does it and I'm just missing it?

    Either way, im going to change the commanded stoich back to 14.7 and set...
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    So in my logger, i have the wideband reading...

    So in my logger, i have the wideband reading through the ac pressure sensor. And since the stoich value is 11.4, thats what it is trying to keep my fueling around and is my commanded fuel. So should...
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    E85 tune help

    So i got a canned tune from zzp when i ordered all my parts for my lsj. They have it commanding 11.4. My wuestion is should my wideband be reading 11.4 as my "stoich" value or should it still be...
  5. I am logging both already and I haven't notice...

    I am logging both already and I haven't notice any diviation between the two so far. Bumping up to 26psi today, so we'll see how it handles it. If still good maybe 27-28psi, but we'll see how 26 does...
  6. How can I tell when the fueling starts to run...

    How can I tell when the fueling starts to run out? Will it be as simple as not being able to command the .88 lamda or will there be obvious signs I'm not getting the fuel? For instance the injector...
  7. What do you guys think of the zzp ported head...

    What do you guys think of the zzp ported head combo? Is it worth the cost? I know porting this head isn't the same as doing other heads, but would it be a more reasonable option to send it to someone...
  8. s256 + E47 : Looking for some suggestions and criticism with tune

    So I have been experimenting with my 256 kit I just put on a few weeks back. Trying to push the limits and see what everything can handle.

    Current setup:
    Gen 3 LDK
    zzp s256 kit
    3" MPX exhaust...
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    Bill has been handling this issue with me thru...

    Bill has been handling this issue with me thru emails. Its kinda weird how this happened, 2 weeks before this issue I was tuning it with no issues. But were getting there! At least I have a vcm id...
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    Nope. Waiting for support, not available until...

    Nope. Waiting for support, not available until tomorrow.
  11. Replies
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    Damn. Well im on my phone and cant fix it now,...

    Damn. Well im on my phone and cant fix it now, but it says "flash checksum validation failed".

    Never seen that before...
  12. Replies
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    Anyone have this issue?

    New hard drive was put in my laptop, installed HPT and went to read my tune. Sat for the 17 minutes it took and received this window when it was done...
    ...
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    All gaskets look clean. I am going to replace the...

    All gaskets look clean. I am going to replace the dp to catback gasket tho. doesnt look in to good of shape. But i dont think that would cause the issue. I think it was the mixture of fuel I put in....
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    LTFT always +2.3

    Lately my ltft is constantly going positive. Floats between .8-2.3%. After making the adjustments it will go to zero, but then the next time out its back to 2.3...

    I checked for leaks and didnt...
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    So its going into OL when its leans out and the...

    So its going into OL when its leans out and the fuel trims shut off for those random few seconds? If so, how do I prevent that?
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    Ya the rear o2 is still installed and it is a AEM...

    Ya the rear o2 is still installed and it is a AEM uego wideband.
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    Set the codes back to what you said Area, still...

    Set the codes back to what you said Area, still going lean randomly..
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    OK thanks Area, Ill try that.

    OK thanks Area, Ill try that.
  19. Replies
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    I have the commanded afr logged in the primary...

    I have the commanded afr logged in the primary table, just not showing in the gauge. Is there a way to delete this test from happening? I think I have all the 2nd o2 codes deleted so I dont know why...
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    Heres the config I am using if it helps.

    Heres the config I am using if it helps.
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    Here are some of the logs and the tune. It...

    Here are some of the logs and the tune.

    It does it a couple times, once it is down to 12.8, which I would guess is the cat test, and it also does it at 17-18 but I dont know why it would be doing...
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    Wierd AFR while cruising

    Car: 2007 Cobalt SS/SC
    Mods: intake, ls4 tb, pnp sc, h/e, 2.8 pulley, 60's, catless dp & exhaust

    While tuning in open loop the car runs fantastic, perfect afr all around!

    When put in closed...
  23. Replies
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    Its such a pain in the as when trying to tune...

    Its such a pain in the as when trying to tune when today its 31* and tomorrow its going to be 54*......
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    If I disable the Tq Mgt Inj Disable table, thats...

    If I disable the Tq Mgt Inj Disable table, thats just getting rid of the dfco. What is that going to do for the pull?

    And Idk what the Optimum Tq Table even does really. So I don't feel...
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    Im in Ohio currently. With the E going up to E85...

    Im in Ohio currently. With the E going up to E85 from E70, what all wil change with that? I am getting no KR and Im running 24* timing. Im assuming my fuel trims will change with it, but what else?
    ...
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