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    Thats a good thought, I hadn't considered that. I...

    Thats a good thought, I hadn't considered that. I will give that a try. Thankfully its back in the 70's here now.
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    I think I had it like that before adjusting and...

    I think I had it like that before adjusting and the fuel trims we're WAY off and it was pulling a bunch of fuel running lean. As part of scaling the tune I also scaled the closed loop mode table...
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    Anybody see anything that would cause this?

    Anybody see anything that would cause this?
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    Tune attached. Ignore the MAF table, its maxed on...

    Tune attached. Ignore the MAF table, its maxed on a scaled tune and I need to move to an LS7 MAF to get more range.
    21747
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    The only thing I haven't figured out is the fuel...

    The only thing I haven't figured out is the fuel trims only pull fuel they never go positive which seems odd to me.
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    Bumping this thread from awhile ago with an...

    Bumping this thread from awhile ago with an update. Set up a hybrid tune. OL idle below 1200rpms and closed loop above that. When the setup went closed loop it was leaning out the cruise AFR to...
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    Here's the post on LS1tech about how I've kept...

    Here's the post on LS1tech about how I've kept this stock 4L60E alive.
    ...
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    Haha no problem.

    Haha no problem.
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    No problem will do. I want to get to the track...

    No problem will do. I want to get to the track first so I can make sure of everything first.
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    Cool. I'll have to play with it some....bigger...

    Cool. I'll have to play with it some....bigger "issue" is I maxed the maf on a 70 percent scaled tune lol...will have to go back and rescale some more. I'll probably make a thread on tech about my...
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    I may just have had an epiphany. I tell the PCM...

    I may just have had an epiphany. I tell the PCM to pull 30% of torque at the 2-3 shift. If I look at B6605 and check out 30%, it shows the same timing I am seeing by logging BTM and XMSN. I am...
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    Thanks Joe. Thankfully I logged those 3 PIDS as...

    Thanks Joe. Thankfully I logged those 3 PIDS as well. The traction control was zero, but the other 2 were almost identical. They start at zero and then at the 2-3 shift they both jump to 22 degrees...
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    Gm.est_trq_dma ????

    Can anyone tell me anything about this PID? I've got this PID showing its pulling about 10 degrees at the shift and then slowly decays to zero. I want to keep it puling timing at the shift but would...
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    Thanks!

    Thanks!
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    My guess is belt slip is playing a role in the...

    My guess is belt slip is playing a role in the MAF being a bit bumpy, but ill take another swag at it. Something I was thinking of is when I did my scaling, I need to verify that I scaled the CL mode...
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    Update. Went back OLMAF and added another ground...

    Update. Went back OLMAF and added another ground from the block to the battery post and it seems to be helping when OL at least. Also worked out some belt slip issues and it pulls hard now. Did...
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    That's unfortunate. I've been hearing that alot...

    That's unfortunate. I've been hearing that alot lately. I may try and see if I can reprogram mine or something. Did anything jump out at you in the tune? I get my new electric fan Thursday so I'll...
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    Well that stinks. I'll try the open loop stuff...

    Well that stinks. I'll try the open loop stuff and report back in a couple days.
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    Checking voltage potential differences at steady...

    Checking voltage potential differences at steady state with no Dyno is going to be tough. I thought when you're open loop the O2s will drift all over to whatever they please, they just don't switch....
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    I made a change to the switch points at CL mode...

    I made a change to the switch points at CL mode 24 and 32 and it appears the crusing AFR is better than it was, not perfect but in the right direction. Idle still is leaner than I would want....
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    Ah crap,well now I just feel lazy. I thought...

    Ah crap,well now I just feel lazy. I thought about CL mode and figures there was no way it was that high given that the time is scaled 30 percent, but didn't actually check it. One thing you said...
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    Serial only on both widebands. I've tuned quite a...

    Serial only on both widebands. I've tuned quite a few cars now and this one runs great, especially given the cam and blower, but this closed loop lean business is so weird to me.
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    Verified the air fuel with a lm1 in place of my...

    Verified the air fuel with a lm1 in place of my new lc1 and same result.
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    This is a "warm" start as I had been messing with...

    This is a "warm" start as I had been messing with the MAF table and other crap to try and get it resolved. Notice the air fuel before the O2's start switching and it goes closed loop and then the air...
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    Closed loop goes rich not lean????

    Reference this thread for my setup and history
    https://forum.efilive.com/showthread.php?27603-Blower-Larger-Cam-Timing-Theory-with-Pics&highlight=

    I've got the tune pretty much down pat, cold...
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