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armageddon
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« on: April 13, 2015, 01:08:02 PM »
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Hi, if anyone could help.. I'm trying to make KFLDIMX right but having some issues Same tune on both logs, 1st heat soaked very slightly downhill, 2nd first day pull same place inverse direction 1st log boost get low on top end 2nd log having those boost spike   Will this be a tune problem or hardware problem? every now and then I'm getting this fault code "17956 - Boost Pressure Controle Valve (N75): Open Circuit" but not at the moment logs attached |
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vwaudiguy
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« Reply #1 on: April 13, 2015, 02:00:05 PM »
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every now and then I'm getting this fault code "17956 - Boost Pressure Controle Valve (N75): Open Circuit" but not at the moment
I would try and resolve this first. |
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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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nyet
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« Reply #2 on: April 13, 2015, 03:13:21 PM »
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Yes, resolve your N75 issue, BUT I have to say, that doesn't look bad. I'd work on IMX at lower rpms or try an entirely different approach to KFLDRL
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armageddon
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« Reply #3 on: May 09, 2015, 04:47:26 AM »
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armageddon
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« Reply #4 on: May 09, 2015, 05:53:16 AM »
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Pics
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sweegie
Full Member
Karma: +10/-2
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Posts: 137
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« Reply #5 on: May 11, 2015, 07:12:46 AM »
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Looks like your N75 PID controller needs some more work. Try increasing KFLDRQ2 and reducing KFLDRQ1 before you get the overboost condition?
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prj
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« Reply #6 on: May 11, 2015, 11:01:28 PM »
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Looks like your N75 PID controller needs some more work. Try increasing KFLDRQ2 and reducing KFLDRQ1 before you get the overboost condition?
No, he has other issues. One of them probably includes setting UMDYLDR to a ridiculous value? |
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armageddon
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« Reply #7 on: May 12, 2015, 11:35:31 AM »
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Thanks for your inputs.
I will take a look at KFLDRQ2/1
UMDYLDR is stock
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nyet
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« Reply #8 on: May 12, 2015, 12:30:03 PM »
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Also, why isn't your DC 100 during spool?
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armageddon
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« Reply #9 on: May 18, 2015, 11:15:45 AM »
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Also, why isn't your DC 100 during spool?
I had reduced imx at lower revs to try eliminate those boost spikes This is with imx 95 till 2750rpm  Will increase KFLDRQ2 tomorrow to see if it helps |
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ddillenger
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« Reply #10 on: May 18, 2015, 03:28:30 PM »
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I had reduced imx at lower revs to try eliminate those boost spikes This is with imx 95 till 2750rpm Will increase KFLDRQ2 tomorrow to see if it helps I would get more aggressive with request on spool. |
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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!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
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nyet
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« Reply #11 on: May 18, 2015, 03:35:53 PM »
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I would get more aggressive with request on spool.
Except he may also need to bring in Q2 earlier (larger lde) |
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armageddon
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« Reply #12 on: May 19, 2015, 10:20:06 AM »
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Increasing request made it a little worse  So I only increased KFLDRQ2 and I think is a little better  |
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armageddon
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« Reply #13 on: May 20, 2015, 04:05:04 AM »
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I increased KFLDRQ2 a little more and made no difference...
Does anyone want to take a look at my file to see if find whats wrong?
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SB_GLI
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« Reply #14 on: May 20, 2015, 06:25:13 AM »
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I have not looked at your file, but you likely need to still increase q2 in the higher lde columns and also raise the last column dimx to get the boost to stabilize.
I would start with a stock dimx, and raise the values from there... and a stock q2 and raise it mostly in the higher lde columns.
Q2 example of what usually works for me:
pick the rpm row that represents your earliest full spool up time (2750-3000). go to the last LDE column (700). Increase that value by 25%. smooth out the cells around that area into the rest of the map.
Then, update the last column of dimx by ever so slightly raising those values to prevent the oscillation you see.
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