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 Post subject: CL delays
PostPosted: Tue Apr 11, 2006 9:40 pm 
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The CL delay A-D should have 4 values each (instead of 1 value in the current XML). I noticed that these values are, in fact, on the ECU. I changed the table definition and the resulting output appears to be correct. My values for A4SGC00C are:

A: 366, 2075, 1098, 122
B: 122, 976, 488, 366
C: 366, 2075, 1098, 366
D: 122, 732, 366, 3662

For reference, Cobb's ST guide lists the delays for an STi VII (they recommend for performance):

A: 0000, 2075, 1098, 122
B: 732, 976, 488, 0000
C: 0000, 1709, 1098, 0000
D: 122, 732, 366, 0000

So, it appears that these are the correct values (not sure what the values represent, but I think they are some odd-ball algorithm that Subaru put in there). The other CL parameters need some adjustment too, I think, as some of them are supposed to be in a table format of multiple values. Wish I could find a SS of the stock streettuner for all the CL parameters. Here's the code for the delay A-D:

Code:
<table type="1D" name="CL Delay A" category="OLCL"  storagetype="uint16" endian="big" sizey="4">
   <scaling units="g/sec" expression="x" to_byte="x" format="#" increment="1" />
   <description>"CL Delays A (g/sec) Increasing RPM"</description>
 </table>

 <table type="1D" name="CL Delay B" category="OLCL" storagetype="uint16" endian="big" sizey="4">
   <scaling units="g/sec" expression="x" to_byte="x" format="#" increment="1" />
   <description>"CL Delays B (g/sec) Decreasing RPM"</description>
 </table>

 <table type="1D" name="CL Delay C" category="OLCL" storagetype="uint16" endian="big" sizey="4">
   <scaling units="g/sec" expression="x" to_byte="x" format="#" increment="1" />
   <description>"CL Delays C (g/sec) Increasing MPH"</description>
 </table>

 <table type="1D" name="CL Delay D" category="OLCL" storagetype="uint16" endian="big" sizey="4">
   <scaling units="g/sec" expression="x" to_byte="x" format="#" increment="1" />
   <description>"CL Delays D (g/sec) Decreasing MPH"</description>
 </table>


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 Post subject:
PostPosted: Wed Apr 12, 2006 1:18 pm 
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Thanks for the heads up, I've updated my DEF's and I will upload them later with more added. Now we need to know what the Y axis static RPM/MPH should be, unless it's stored in the ECU as well for those bytes.


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 Post subject:
PostPosted: Wed Apr 12, 2006 1:44 pm 
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ev8siv3 wrote:
Thanks for the heads up, I've updated my DEF's and I will upload them later with more added. Now we need to know what the Y axis static RPM/MPH should be, unless it's stored in the ECU as well for those bytes.

If you mean for the CL delay data, there shouldn't be anything else as far as I know. I believe on streettuner, the only data you are shown is the numbers. I've seen discussions about it and no one quite knows how the ECU reads this tables of numbers, other than it uses inputs from the other data (TPS, RPM, etc) when it determines that switching to OL is necessary and through some reasoning reads one of the values on the table to determine the delay. The higher the number, the longer the delay.

I've been discussing the CL stuff with crazymikie on Nasioc, who really knows the CL/OL tuning stuff as well as tuning in general, and I'm hoping I can further check and refine the other CL parameters. The 02-03s handle the issue different than the 04s+, so some of the tables might be laid out differently. I think this tuning is important as you up the boost at the lower TPS sites, you want to switch out to OL sooner. Also, apparently, it greatly improves driveability to do so and the 04+ guys can have real detonation problems with the delay.


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 Post subject:
PostPosted: Thu Apr 13, 2006 4:05 pm 
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Yes mikes fix works great as far as driveability. I was the guinie pig for mike. It only took 21 flashes before we found a combination that worked well.

The other day I was tinking useing diffrent images as base maps (such as the 520) and copying all info from my current tune to the new image, including the OL/CL delay vaules. When logging the delay was back (and boy did I forget how horrible it was). This doesn't make sense to me, and I've had the time to discuse it with mike. Are any of you making your own modifications to the delay vaules and having good luck?

If you are can you post a log? Thanks

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Enjoy,

Jeramie


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 Post subject:
PostPosted: Thu Apr 13, 2006 6:58 pm 
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I haven't flashed it yet as I don't think the values in the recent XMLs for the CL parameters are all correct and I don't want to risk it. I know, for example, that the CL modified load should be more than 1 value. I really wish I could get screenshots of all the closed loop settings in streettuner. This would really clear it up.

What year WRX do you have? I know the 02-03s handle the closed loop stuff differently than the 04s+. Not just the values, but I think the tables might be different as well:

(from streetuner about CL Modified load):
"For 2002-2003 WRX models, a table references a modified Load value
according to Engine RPM.
For 2004 and 2005 WRX models, this is a singular value not referenced
by Engine RPM."


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 Post subject:
PostPosted: Thu Apr 13, 2006 7:23 pm 
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"I haven't flashed it yet as I don't think the values in the recent XMLs for the CL parameters are all correct and I don't want to risk it."

:shock: :shock:

I'm glad my car didn't blow up! :D I have an 04

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Enjoy,

Jeramie


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 Post subject:
PostPosted: Thu Apr 13, 2006 7:38 pm 
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Joined: Fri Mar 24, 2006 3:14 pm
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Jeramie wrote:
"I haven't flashed it yet as I don't think the values in the recent XMLs for the CL parameters are all correct and I don't want to risk it."

:shock: :shock:

I'm glad my car didn't blow up! :D I have an 04


Remember he is on a 02/03 and the 04/05 use the single value. You should be fine modifying the 4 tables for delay on 04/05.

Ours shows stock as 2.53 g/s and the new value for the fix is 2.30
On the 02/03 it's showing up as .23.

I extended the Y on 02/03 to see whats in there and theres more info but I think I need to check the storage addresses on those years again. It would help to have a v1.30 Stage 1/2 map for 02/03 to verify changes.


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 Post subject:
PostPosted: Thu Apr 13, 2006 7:58 pm 
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Joined: Fri Mar 24, 2006 3:14 pm
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Fixed A4SGC10C Modified Load, will do more later.


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