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terminator
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« Reply #30 on: October 06, 2019, 11:40:41 AM »
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Your IMX is a mess during spool. Bring it down significantly. It should be flat until you reach desired boost
Thanks, gonna test it tomorrow. But the spool is very weird, in my opinion. I attached another VCDS log (70% DC), that I've made before. |
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terminator
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« Reply #31 on: October 06, 2019, 12:12:42 PM »
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i see 2 probs here:
1 boost cannot be controlled after 6k
2 pid
get a pressure test wg lines. check for leaks, actuator rod moving etc. probably one of them faulty
check n75 in another car
log it with TVLDMX = 0 and ldrxn ~180
if you see boost goes high after 6k with then probably wg hole should be ported
as second
did you flat KFLDRL? k03 wont work good with that
is it stock springs in actuators used?
cap DIMX @3k ~~~40%
raise Q2
play with Q1ST
N75 is new. I'm pretty sure it's because of PID. But it's because of the pressure can't be dropped down in a short period of time. Like a Chinese Turbo with restricted WG port. The spool is not lineal at all. When DC is 95% it goes like RPM 2100 2400 2800 3100 Mbar 1300 1500 1900 2800That's why N75 should start reducing DC from at least 2400RPM. This is my theory and I'm gonna check it tomorrow. I've raised Q2 magnificently and brought Q0 and IMX down. I hope there will be no oscillations. |
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nyet
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« Reply #32 on: October 06, 2019, 10:02:10 PM »
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Don't touch any of the Q params until you have an IMX that makes sense. You're wasting your time adjusting more than one thing at once.
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! 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 ex
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terminator
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« Reply #33 on: October 19, 2019, 07:14:12 AM »
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Looks like I've found the problem) WG coudn't be fully open due to poor adjustment.
But now I have another problem. I can't request more than 200% of rlsol and rlmax at middle RPM. The requested load goes down from 2000RPM until 4200RPM and then rises up again.
IRL/IOP are ok, LDRXN was set to 230%, KFLDHBN 2.55 KFPED 100%
What did I miss? Please give me a hint.
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BlackT
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« Reply #34 on: October 19, 2019, 07:16:47 AM »
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KFLDHBN limiting you load, but that is good beacuse you expect 1.5 boost at red line with K04?
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« Last Edit: October 19, 2019, 07:22:10 AM by BlackT »
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terminator
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« Reply #35 on: October 19, 2019, 08:03:44 AM »
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How can this be if I set KFLDHBN to 2.6?
1.5bar is for test only. PID is currently disabled.
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BlackT
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« Reply #36 on: October 19, 2019, 08:26:57 AM »
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How can this be if I set KFLDHBN to 2.6?
1.5bar is for test only. PID is currently disabled.
you have to options, to read how ME7 convert load to boost and get answer to you question. Or set that whole table to lets say 2.9-3.0 and dont think about it |
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terminator
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« Reply #37 on: October 19, 2019, 09:13:59 AM »
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Thanx, I set up it to 3 and now rlsol is 205 and boost is about 1.4bar)
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terminator
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« Reply #38 on: October 19, 2019, 10:42:47 AM »
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I set 4 and the same load 205. I'm pretty sure there is another limit.
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BlackT
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« Reply #39 on: October 19, 2019, 11:08:11 AM »
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Post log again
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terminator
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« Reply #40 on: October 19, 2019, 01:18:40 PM »
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Attached
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BlackT
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« Reply #41 on: October 19, 2019, 01:43:55 PM »
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Now you get rid of ldrlts
But how your LDRXN values looks like?
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terminator
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« Reply #42 on: October 19, 2019, 02:00:30 PM »
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Here it is. Also I attached the files above.
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terminator
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« Reply #43 on: October 19, 2019, 02:02:49 PM »
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Please note, I set CWMDAPP to 8, so PID is disabled now.
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BlackT
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« Reply #44 on: October 19, 2019, 02:17:25 PM »
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Maybe to high IAT or knock will give you smaller values to rlmax_w. I never goo too deep in that conversion rlmx to rlmax.
Page 855 in FR maybe can give you a answer
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