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ddillenger
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« Reply #15 on: December 15, 2014, 05:31:31 PM »
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From 6500 on your boost is uncontrollable. What turbo and wastegate?
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nyet
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« Reply #16 on: December 15, 2014, 05:36:23 PM »
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Well, you have two logs: one before limp, one after, but neither WHEN it goes limp..
the only odd thing I can see is that in the first log, your actual boost does not come down up top even though the PID is cutting a LOT of DC.... is it possible your N75 is dead, or your wg lines are leaking?
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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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seany260
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« Reply #17 on: December 15, 2014, 05:49:53 PM »
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From 6500 on your boost is uncontrollable. What turbo and wastegate?
Its a 225 k04 in a k03 turbine housing , wastegate is 12-14 psi. Talk to Dan he will be able to give alot more detail than me. |
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seany260
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« Reply #18 on: December 15, 2014, 05:51:11 PM »
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Well, you have two logs: one before limp, one after, but neither WHEN it goes limp..
the only odd thing I can see is that in the first log, your actual boost does not come down up top even though the PID is cutting a LOT of DC.... is it possible your N75 is dead, or your wg lines are leaking?
ok, the first log is it going into limp and killing boost, second log when it's in limp. Ill order some new WG lines tomorrow, i replaced the n75 earlier this year. |
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« Last Edit: December 15, 2014, 06:29:44 PM by seany260 »
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seany260
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« Reply #19 on: December 15, 2014, 06:15:51 PM »
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If you have time to look at line 264 in the csv, it cuts the throttle 50% thats were it goes wrong,
Actually i stand corrected looking again its closing the throttle, boost keeps on coming...
I think boost looks like its uncontrollable because its at that point the throttle is closing.
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« Last Edit: December 15, 2014, 06:25:14 PM by seany260 »
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Billy
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« Reply #20 on: December 31, 2014, 05:30:12 AM »
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Ok, I'm new at this so take what I say with a pinch of salt, but is the problem not the airflow through the maf (200gm/s) plus puts this over the limit of the maf, in this ori anyway?
Larger maf required?
Just saying as I recently had a problem like this, bigger maf needed and scaling
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« Last Edit: December 31, 2014, 05:44:58 AM by Billy »
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seany260
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« Reply #21 on: December 31, 2014, 11:25:43 AM »
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Ok, I'm new at this so take what I say with a pinch of salt, but is the problem not the airflow through the maf (200gm/s) plus puts this over the limit of the maf, in this ori anyway?
Larger maf required?
Just saying as I recently had a problem like this, bigger maf needed and scaling
Honestly don't know how true the theory of that is, but yes I've already got the bigger 225 maf housing and at a good guess it would be scaled correct. |
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Billy
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« Reply #22 on: January 01, 2015, 01:01:02 PM »
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Have you not checked the scaling then?
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nyet
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« Reply #23 on: January 05, 2015, 01:06:21 AM »
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I think boost looks like its uncontrollable because its at that point the throttle is closing.
No, boost is uncontrollable because the ECU's wastegate control is doing nothing. |
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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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seany260
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« Reply #24 on: January 05, 2015, 02:07:18 AM »
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No, boost is uncontrollable because the ECU's wastegate control is doing nothing.
Entirely true I learnt this later because my WG dc control is maxed out, to allow the control of the stronger actuator, I'm told EDLDRP is the cause of the throttle cut because of the boost deviation. But is yet to be found to adjust. |
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10101011
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« Reply #25 on: January 05, 2015, 05:41:35 AM »
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You have changed things mechanically..... this is why you havery over boost issues!!!!!! . Stop messing with the car physically and you might be able to make it run correctly. This forum can not help fix stupid. You need to learn about waste gate acuators and propper set up. If you go to tight ( too strong of a spring ) the problem you will run into is over boost issues.
Lee
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Poor quality lingers long after the price is forgotten ....
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10101011
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« Reply #26 on: January 05, 2015, 05:54:54 AM »
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You need to adjust the waste gate to 7 - 10 psi with a hand pump and then recheck it again. NOT 14 PSI ! .. No wonder you have overboost problems, you've messed with things too much and now you screwed yourself. A K0* turbo is no big deal . Maybe when you go to a Gt 28 or GT 30 or even a Borg Warner EFR turbo...then you set the wastegate higher ,not on a K0x series turbo. please do everybody a favor and Google how to adjust a wastegate actuator on an Audi or Volkswagen.
Lee
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Poor quality lingers long after the price is forgotten ....
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seany260
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« Reply #27 on: January 05, 2015, 06:09:44 AM »
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Thanks for the input, I'm well aware of the mechanical setup of the car and I Have checked and replaced all associated parts that I thought may have been causing any hint of a problem. For the WG actuator it don't need set it was checked with an air regulator 2 weeks ago it's an uprated one that the turbo builder fitted and I'm confident that he knows what he is doing!
People have been doing there absolute best to try and iron out my gremlins in the mapping of the car, to that I am extremely greatful.
if I knew what I was doing with the mapping side of things at this level I would be trying to work it out myself, but I'm only learning the basics in file tuning at this present time.
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« Last Edit: January 05, 2015, 06:17:50 AM by seany260 »
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10101011
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« Reply #28 on: January 05, 2015, 06:44:00 AM »
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I'm telling you that 7 psi for full open wastegate actuator or the wastegate door. Again 7 psi at start to open and 10 psi AT FULL OPEN ON THE WASTE GATE DOOR. THAT IS YOUR PROBLEM WITH THE OVER BOOST. I do this stuff ever day for a living ...... and no you don't use a air regulater to check the waste gate opening pressure !
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4ringpieces
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« Reply #29 on: January 05, 2015, 06:55:48 AM »
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Actuator rod length/preload needs setting correctly, do not use this to change wastegate opening pressure as Your just coil binding and reducing the wastegate opening amount
You can then change the spring rating in the actuator to change the opening pressure from 7psi to 14psi etc
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