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nyet
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« Reply #90 on: February 21, 2013, 12:15:32 AM »
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Hard to say if you can't log the individual P I and D components... not sure if that is possible with MED9  |
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airtite
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« Reply #91 on: February 21, 2013, 12:21:02 AM »
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Hard to say if you can't log the individual P I and D components... not sure if that is possible with MED9 Thats the issue, vcds logging! So it will have to be a trial and error approach. So any advice here would be welcome. |
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airtite
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« Reply #92 on: February 21, 2013, 02:09:56 AM »
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comparing the ed35 k04 GTI to my stock file I see the HPA axis is different, I am going to try and copy this across to my file and see what happens  |
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nyet
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« Reply #93 on: February 21, 2013, 02:18:00 AM »
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Randomly copying a map isn't going to help you.
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airtite
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« Reply #94 on: February 21, 2013, 03:56:28 AM »
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Randomly copying a map isn't going to help you.
well I am not "randomly" copying a map, the file I am basing this on is from a ed35 GTI which is basically the same setup as what I am running except my compressor wheel is a little bigger. |
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prj
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« Reply #95 on: February 21, 2013, 04:24:41 AM »
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well I am not "randomly" copying a map, the file I am basing this on is from a ed35 GTI which is basically the same setup as what I am running except my compressor wheel is a little bigger.
Yes you are randomly copying. To do this right you must set fixed duty cycle and make pulls at 0, 10, 20 etc %. Then fill it all in a table and generate the KFLDRL and KFLDIMX maps from that. And your boost control will usually be perfect. Only if after this it's not working quite right do you need to touch P and D terms. |
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airtite
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« Reply #96 on: February 21, 2013, 04:29:04 AM »
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Yes you are randomly copying.
To do this right you must set fixed duty cycle and make pulls at 0, 10, 20 etc %.
Then fill it all in a table and generate the KFLDRL and KFLDIMX maps from that.
And your boost control will usually be perfect. Only if after this it's not working quite right do you need to touch P and D terms.
OK I guess there is no way around this, and to confirm I am following this? http://nefariousmotorsports.com/forum/index.php?topic=517.msg4013#msg4013 |
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airtite
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« Reply #97 on: February 21, 2013, 01:39:53 PM »
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I must have some hardware issue with the wastegate or actuator. set CWMDAPP = 8 set all cells in KFLDRAPP = 0 and this was the result, surely boost should have stayed low with the wastegate fully open?  |
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airtite
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« Reply #98 on: February 21, 2013, 01:47:26 PM »
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same file different gear (3rd)  |
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RaraK
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« Reply #99 on: February 21, 2013, 02:28:11 PM »
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are you stock turbo?
You shouldnt need to be tweaking all this with a stock turbo.
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prj
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« Reply #100 on: February 21, 2013, 05:23:32 PM »
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are you stock turbo?
You shouldnt need to be tweaking all this with a stock turbo. He isn't. And yes if your WGDC is 0% and you are seeing such boost, you are having hardware issues. |
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airtite
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« Reply #101 on: February 21, 2013, 10:35:32 PM »
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thanks *sigh* guess the turbo must come off again so I can check out the wastegate and actuator...
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nyet
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« Reply #102 on: February 21, 2013, 10:43:39 PM »
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could be as simple as a bad wg line or n75
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airtite
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« Reply #103 on: February 21, 2013, 11:11:44 PM »
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could be as simple as a bad wg line or n75
yup probably but getting to the n75 or checking any of these lines is a mission on the car, will probably be easier just to pull the turbo and do it on the bench. |
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