Divune
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« on: September 07, 2014, 11:26:55 AM »
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Hey all, I'm running my k04 s4 on a stock M box modified for my 85mm MAF and 630cc evs. I believe the maf is scaled properly, idle trims are currently at ~3%. The problem Im running into right now is that my partial fuel trims are always at 0%. This is with a modified LAMFA table, if LAMFA is set to 1s it will show adjustment. I must be doing something wrong here, can anyone assist? I recently switched to e85 also  . Thanks. |
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nyet
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« Reply #1 on: September 07, 2014, 06:43:33 PM »
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Did you correct the M box LAMFA axis?
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Divune
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« Reply #2 on: September 08, 2014, 11:32:55 PM »
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Yes, i have it 50/60/70/80/100
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ddillenger
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« Reply #3 on: September 08, 2014, 11:38:14 PM »
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Yes, i have it 50/60/70/80/100
Don't use 100 or it will always interpolate between 80 and 100. Use a value under 100, but close. I use 97.5. |
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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phila_dot
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« Reply #4 on: September 09, 2014, 06:54:10 AM »
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Don't use 100 or it will always interpolate between 80 and 100. Use a value under 100, but close. I use 97.5.
Not if mrfa_w is 100.  Op, log lamfaw_w and lamfa_w. |
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Westfarmracing
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« Reply #5 on: September 09, 2014, 01:11:00 PM »
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Did you change the actual axis in hex dump, or just the factor axis that you see in the map?
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ddillenger
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« Reply #6 on: September 09, 2014, 02:44:24 PM »
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Not if mrfa_w is 100. Op, log lamfaw_w and lamfa_w. I guess it just makes me feel better having seen mrfa_w<100. I don't see how it would hurt anyway. Westfarmracing: Yes, you change the actual axis in the hex. Just changing the factor will just make it look right, even if it is still wrong. |
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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phila_dot
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« Reply #7 on: September 09, 2014, 05:05:20 PM »
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I guess it just makes me feel better having seen mrfa_w<100. I don't see how it would hurt anyway.
No, you're right, the difference between 97.5% and 100% mrfa_w is inconsequential. |
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nyet
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« Reply #8 on: September 09, 2014, 05:25:44 PM »
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Yes, you change the actual axis in the hex. Just changing the factor will just make it look right, even if it is still wrong.
Yikes. This distinction might really really confuse noobs... we need to make sure that in the stage1 tutorial we're explicit about it |
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ddillenger
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« Reply #9 on: September 09, 2014, 05:54:27 PM »
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Yikes. This distinction might really really confuse noobs... we need to make sure that in the stage1 tutorial we're explicit about it I know, I know. We're straying! Should we fuel with BTS? it's a bigger table though....That and we have to deal with KFDLBTS  Should I amend the bins to fix the axis issue? |
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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Divune
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« Reply #10 on: September 09, 2014, 08:24:22 PM »
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Yeap, i only changed the axis under LAMFA axis, did not do any hex editing. I'll look into correcting that, and then log. My AFRs are so rich part throttle.
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ddillenger
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« Reply #11 on: September 09, 2014, 08:59:47 PM »
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If you edited the data in the LAMFA axis parameter in the xdf I created, that edited the bin.
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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nyet
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« Reply #12 on: September 09, 2014, 09:48:45 PM »
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Yeap, i only changed the axis under LAMFA axis, did not do any hex editing.
From that, it still isn't clear if you changed the actual bin contents, or just the axis definition. You need to do the former, not the latter. |
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vwaudiguy
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« Reply #13 on: September 09, 2014, 10:55:07 PM »
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Initially I made this mistake. Went to check my fuel trims and they were also 0 on part throttle. Drove it 30 miles or so like that, lost 50 miles on a full tank but it sure drove smooooth. Hehe. Fixed now. |
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"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
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Westfarmracing
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« Reply #14 on: September 10, 2014, 12:18:04 AM »
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I guess it just makes me feel better having seen mrfa_w<100. I don't see how it would hurt anyway.
Westfarmracing:
Yes, you change the actual axis in the hex. Just changing the factor will just make it look right, even if it is still wrong.
I know this, had the same problem myself. That's why I asked  Guess the problem for OP is solved now anyhow |
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