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I see you are not getting any help with this. Did you get it figured out? I am having the same problem, but I have found that yesterday's log might not open, but today's will, i.e. it is an...

YES.

Check out this thread, I posted starting at #185.

http://www.hptuners.com/forum/showthread.php?15564-About-to-throw-in-the-towel-nailing-down-idle/page10

I gave up on trying to "fix"...

Your intake appears to be very short. I am using a GMPP controller package, and with that the instructions are very specific about MAF placement, i.e. that it must be a certain distance from the...

I have LS376-480 with the GMPP controller package, and I have the same situation. No matter what I have tried, it won't idle less than about 850. I can go higher, but no lower. It isn't a...

Thank you, I will check for that!

Thanks. I haven't been doing much with it lately. It could probably be better, but it basically idles ok as it is--mostly I am trying to make sense of it all.

I did try reducing Max Idle Area...

OK, thanks, you are correct. I found the values you are referring to now...on mine they are both 2.51%. I will give that a try also.

Thanks. I tried changing the value from (8149?) to 4000 and no effect, so went all the way to 200 and still no effect.

These things don't always seem to make sense to me, but I would THINK that...

OK, thanks. I had to check--I have version 2.24.57 (purchased a little over a year ago).

Thank you. If I can find that I will give that a try!

I don't know of anything else, but I am sort of a beginner at this, so there may well be...

You probably already know this, but there is a section which I believe is called "fuel cutoff", which is a bit of a misnomer in that you can enable spark or ETC to limit RPM's. It sounds as if your...

I wasn't connected to the car when I tried opening it. (I will try that though and see if it makes a difference--will let you know.)

I get an error pop up that says "unable to parse log", and...

Well, that brings me to something else, I was trying not to ask too many questions at once...

I was not able to open the config file from this thread, and I am thinking it may be because I have a...

Thanks to Bill for submitting this technique.

I am hoping that someone can suggest what I am missing here...

No matter what I do, I cannot get it to idle below ~875 RPM, which is the...

If you are looking at your main spark table, I believe the above is correct--I don't think it has any effect at idle.

I am also new to this but I will comment, and I also have a related...

Disclaimer, I'm not an expert, but this is my understanding...

Yes, I believe your wideband should read ~14.7 regardless of fuel composition.

Just a guess, but perhaps it could be that...

OK, thanks!

I AM making some progress with this but I still have some experimenting to do. I have gotten it to run lean in closed loop by setting ALL switch points (including max and min) to...

BTW, my narrow bands seem to have an upper plateau around 850 mv and a low plateau around 30-40. Is that normal?

OK thanks. I am going to do some more experimenting with it and see what I can do. I tried changing switching voltage to 60 mv in just one of the cells leaving the others at 450, and with just one...

You may be correct--I will have to recheck that also. I THOUGHT that the voltages were low at startup and then they crept up as the engine warmed up, but I could have that backwards.

I didn't realize that. It SEEMED to make it leaner when I lowered switch points but I guess I will need to recheck that.

I am not worrying about it exactly, and the car runs great. I mostly...

Thank you, that is an interesting theory, but not sure how I would test that or what to do about it. In any case, you could be on to something.

I think my O2 sensors (both narrow band and wide...

Thank you for replying, but could you please elaborate? (I don't understand what your point is.)

OK, follow-up question...

The narrowband O2 sensors are those that came with the GMPP controller package for the LS376-480. If I were to replace the O2 sensors to see if they are the problem,...