Having issues with making changes to maps..

K-Series Programmable ECU installation questions / support issues
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sohc_mshue
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Having issues with making changes to maps..

Post by sohc_mshue »

I tuned a friend's k20a the other night and all seemed to go well. I tuned each individual cam angle fuel map for the low and hi cam maps. Later on i was looking over the maps and noticed that all of the hi cam cam angle fuel maps were exactly the same for the last 4 columns that i was editing. They all looked just like the 50 degree map I had done. For some reason all of the low cam maps were different just like they should be.

I went back and retuned the hi cam cam angle maps again tonight and found that when adjusting fuel tables values from the lambda log map it would randomly set all of the hi cam fuel tables to the same thing(only the last 4 columns that i was adjusting). I then tried switching back to the actual fuel map and making adjustments directly from there. This seemed to fix the problem and i went about tuning the rest of the cam angles on the hi cam map. It wasn't until the last cam angle i started having problems again. Now it was doing the same exact thing even if i made changes to the fuel map...it would end up changing all of the hi cam cam angle fuel maps even though i didn't have "edit all" selected. :(

Is this just a bug in the program?
Razathorn
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Post by Razathorn »

I had something like that happen, but I had the "edit all" checked.
sohc_mshue
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Location: Richmond, VA

Post by sohc_mshue »

Thats the thing...i didn't even have edit all checked so it was really weird. :?

I couldn't get it to stop doing it so I actually just had to do the last cam angle fuel map, copy it, and then paste it into a saved file of the rest of the maps.
Razathorn
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Post by Razathorn »

sohc_mshue wrote:anyone?
What version of Kmanager is this? Can you upload your calibration?
sohc_mshue
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Post by sohc_mshue »

I tuned it using the owner of the car's laptop. I will try to get him to email me the final calibration. I believe he said it was the newest version for downloading off of the hondata website.
sohc_mshue
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Joined: Thu Aug 25, 2005 4:54 pm
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Post by sohc_mshue »

ok he sais it was the newest version he dl'ed off of here.

I posted the attachment of his kalibration.
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Razathorn
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Location: Lenexa, Kansas, USA

Post by Razathorn »

Well, I cracked open your config and it didn't do anything special to my kmanager. It would be intersting to know if the fuel column values were changing when you changed the cam drop down along with the graph. I've seen an instace when my graph would stop being updated from time to time -- but I could never reproduce it when I wanted.

If you happen to see this behavior again -- check if both the graph and the table values are the same across all cam angles.
Razathorn
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Location: Lenexa, Kansas, USA

Post by Razathorn »

by the way -- I noticed you don't have any temperature compensation table values in your config. You might take a look at the values in the coldair calibration that ships with kmanager -- it's values are fairly accurate -- you might plug those in for safe measure so you don't go lean when it gets cooler.

Wayne
sohc_mshue
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Post by sohc_mshue »

Hi, Sorry I forgot about this thread and am taking so long to respond. I'm glad you noticed that temp correction problem. The reason it was set that way was because we started out with a "tuned" map as a base for this engine. The map was from a reputable shop who had tuned an identical setup(k20a rcrew header, intake, and rcrew im expander). We are using that as a base until he has time to hit the dyno so i can tune cam angles and ignition tables. The only thing I adjusted was the fuel tables and for some reason they must have changed the IAT correction values...i didn't even think to look because i assumed they wouldn't have changed them since its running stock injectors.

Oh and the reason i came back to this post is I had the same problem again with the tables mysteriously all changing at the same time. This was on a completely different car i was tuning using a completely different laptop. I tuned the low cam maps just fine doing each individual cam angle with the "edit all tables" box unchecked. Then I moved on to the hi cam map and again as before I would start off by editing the 0 degree cam angle map. Then I moved onto the 10 degree map and after tuning the 10 degree I went back through the cam angles to see how they looked and every single cam angle for just the hi cam portion had the same fuel map. So i ended up having to save like 6 different files and piece them all together to make my final kalibration. Any idea yet whats going on? Am I forgeting to check off an option? :?
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Hondata
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Post by Hondata »

Can you tell us the exact sequence you follow to cause this problem?
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sohc_mshue
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Post by sohc_mshue »

Well lets see....i start off by setting the low cam angle map to 0* everywhere. Then I datalog a few runs and tune the low cam 0 degree map with "edit all tables" unchecked. Then I go on and do the same thing for the 10-50* maps...each time i lock the cam angle in at whatever degree i'm tuning. Then I save that file and then start doing the same exact thing except for the hicam maps, except this is where it starts acting up. After editing the 0 degree hi cam map if I went through and checked the rest of the degrees for the hi cam(say I had edited just the last 4 columns)....the last 4 columns for all of the cam angles on just the hi cam map would read exactly the same as what I had edited the 0 degree map to. The same thing happens when i am on the other angles. So in order to make a complete tune I had to save a different file for every cam angle and then piece the maps together into one final tune. I can't get this to reproduce when trying it on my computer when not tuning a car. Maybe it is a bug that happens when you datalog?
sohc_mshue
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Post by sohc_mshue »

any idea?
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Hondata
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Post by Hondata »

Works OK for me. Can you provide a more detailed procedure to reproduce the problem? (I know that this is a pain to do).
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sohc_mshue
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Post by sohc_mshue »

Honestly that is a precise as I can describe it. I've tried reproducing it on my own computer, but i can't get it to do it either. Yet for some reason when i'm actually tuning a car the problem has mysteriously popped up a couple of different times using 3 different computers. I unfortunately don't have a K series of my own to experiment with, but I will let you know If I have anymore problems with this.
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