Notices
ECU Flash

Tephra v7 9653 thottle hang

Thread Tools
 
Search this Thread
 
Old Oct 12, 2010 | 10:46 PM
  #136  
mrfred's Avatar
EvoM Guru
iTrader: (50)
 
Joined: Mar 2006
Posts: 9,675
Likes: 132
From: Tri-Cities, WA // Portland, OR
Originally Posted by merlin.oz
mrfred, does this mean that any xml that has "decel fuel-cut delay" defined will be wrongly labled, and is in fact another ISCV table or tables?
For the USDM Evo 9, yes. Not sure about the other ROMs. Mattjin probably found the decel fuel cut delay tables first for the Evo 7 GTA ROM and then took educated guesses at finding the tables in other ROMs.
Reply
Old Oct 12, 2010 | 10:47 PM
  #137  
Boosted Tuning's Avatar
Former Sponsor
iTrader: (12)
 
Joined: Jun 2005
Posts: 2,383
Likes: 8
From: Chico, CA (Nor-Cal)
Originally Posted by mrfred
finally looked at the code around these tables. at least for the usdm evo 9, the first two have nothing two do with fuel cut. they are iscv demand tables. thought i had gone thru all the iscv code. must have gotten burned out. still looking at the third table.
LOL.

Looking forward to your findings.
Reply
Old Oct 12, 2010 | 10:49 PM
  #138  
Boosted Tuning's Avatar
Former Sponsor
iTrader: (12)
 
Joined: Jun 2005
Posts: 2,383
Likes: 8
From: Chico, CA (Nor-Cal)
Originally Posted by mrfred
For the USDM Evo 9, yes. Not sure about the other ROMs. Mattjin found it first probably for the Evo 7 GTA ROM and then took educated guesses at finding the tables in other ROMs.
It seems that theres a lot of ISCV table that need to be redefined, as in these "delay fuel tables" and the original desired steps tables with drive and neutral.

For 9417, 9653 and 8859....... to bad I cant disassemble
Reply
Old Oct 13, 2010 | 06:30 AM
  #139  
Appauldd's Avatar
Evolved Member
iTrader: (22)
 
Joined: Nov 2003
Posts: 2,408
Likes: 7
From: Northern KY near Cincy
Odd that they are not fuel cut tables....especailly since we proved that by changing them we can eliminiate throttle hang. CRAZY!
Reply
Old Oct 13, 2010 | 07:45 AM
  #140  
mrfred's Avatar
EvoM Guru
iTrader: (50)
 
Joined: Mar 2006
Posts: 9,675
Likes: 132
From: Tri-Cities, WA // Portland, OR
Originally Posted by Appauldd
Odd that they are not fuel cut tables....especailly since we proved that by changing them we can eliminiate throttle hang. CRAZY!
In ROMs other than the USDM Evo 9 ROM, they could be related to fuel cut. I haven't checked those to verify.
Reply
Old Oct 13, 2010 | 10:35 AM
  #141  
ace442's Avatar
Newbie
 
Joined: Jun 2010
Posts: 11
Likes: 0
From: Sydney, Australia
Does anyone have these tables (fuel cut or not) defined for 88580013/14?

I couldnt find them anywhere
Reply
Old Oct 13, 2010 | 11:38 AM
  #142  
Kakihara's Avatar
Evolving Member
 
Joined: Sep 2008
Posts: 111
Likes: 2
From: Europe
I'm not a tuner in fact the only reason I'm doing this is because my ex-tuner gave me back my car with a lot of throttle hang and does not want/know fix it

You should also know that I've read my 1st ECU rom no less than 5 days ago and reading forums since then is my only experience in ecu-tuning, I have absolutely no idea of what I'm doing.

So take those tables with extreme caution, I found them by taking guesses and calculating the address from other tables.
I just tried various addresses until the results matched screenshots in the Merlin evo tuning guide and other screenshots found on evom, that's how scientific it was

This said tables that "seem right" for the 88580013.xml
Fyi I apparently have the tephra v7 88580714 rom on my car
Code:
<table name="Decel Fuel Cut Delay #1" category="Fuel" address="3d92" type="2D" level="2" scaling="uint8">
<table name="Engine Load" address="6fd0" type="Y Axis" elements="7" scaling="Load"/>
</table>

<table name="Decel Fuel Cut Delay #2" category="Fuel" address="3da6" type="2D" level="2" scaling="uint8">
<table name="Engine Load" address="6fd0" type="Y Axis" elements="7" scaling="Load"/>
</table>

<table name="Decel Fuel Cut Ignition Retard" category="Fuel" address="3dc6" type="2D" level="2" scaling="Timing">
<table name="Engine Speed" address="6fa8" type="Y Axis" elements="10" scaling="RPM"/>
</table>

I personnally won't modify them and reflash my car until I got confirmation that they are right !

Last edited by Kakihara; Oct 14, 2010 at 10:13 AM.
Reply
Old Oct 18, 2010 | 04:05 AM
  #143  
mrfred's Avatar
EvoM Guru
iTrader: (50)
 
Joined: Mar 2006
Posts: 9,675
Likes: 132
From: Tri-Cities, WA // Portland, OR
I took some time to look at the 9417 and 9653 ROMs, and the "decel fuel cut" tables in these ROMs are also ISCV demand tables. For those of you that have used these tables to successfully reduce the throttle hang, did you decrease or increase the values in the table(s)?
Reply
Old Oct 18, 2010 | 12:20 PM
  #144  
Boosted Tuning's Avatar
Former Sponsor
iTrader: (12)
 
Joined: Jun 2005
Posts: 2,383
Likes: 8
From: Chico, CA (Nor-Cal)
Originally Posted by mrfred
I took some time to look at the 9417 and 9653 ROMs, and the "decel fuel cut" tables in these ROMs are also ISCV demand tables. For those of you that have used these tables to successfully reduce the throttle hang, did you decrease or increase the values in the table(s)?
Decrease
Reply
Old Oct 18, 2010 | 02:57 PM
  #145  
mrfred's Avatar
EvoM Guru
iTrader: (50)
 
Joined: Mar 2006
Posts: 9,675
Likes: 132
From: Tri-Cities, WA // Portland, OR
Originally Posted by Boosted Tuning
Decrease
That's what I thought, but I think one person said that for the 9653 ROM, they used the 9417 ROM tables to get rid of the throttle hang, and the 9417 values are higher than the 9653 values. Thanks.
Reply
Old Oct 18, 2010 | 03:15 PM
  #146  
Boosted Tuning's Avatar
Former Sponsor
iTrader: (12)
 
Joined: Jun 2005
Posts: 2,383
Likes: 8
From: Chico, CA (Nor-Cal)
Originally Posted by mrfred
That's what I thought, but I think one person said that for the 9653 ROM, they used the 9417 ROM tables to get rid of the throttle hang, and the 9417 values are higher than the 9653 values. Thanks.
When I look at 9653 vs 9417, 9417 has LOWER values.

Attached Thumbnails Tephra v7 9653 thottle hang-untitled.png  
Reply
Old Oct 18, 2010 | 03:18 PM
  #147  
mrfred's Avatar
EvoM Guru
iTrader: (50)
 
Joined: Mar 2006
Posts: 9,675
Likes: 132
From: Tri-Cities, WA // Portland, OR
Originally Posted by Boosted Tuning
When I look at 9653 vs 9417, 9417 has LOWER values.

...
Hmmm. I thought I saw lower values last night in 9417. I'll take your word for it. I'll post up revised tables shortly.
Reply
Old Oct 25, 2010 | 06:19 PM
  #148  
AutoXer's Avatar
Evolved Member
iTrader: (1)
 
Joined: Dec 2002
Posts: 804
Likes: 0
From: Logan, WV
Originally Posted by Appauldd
Odd that they are not fuel cut tables....especailly since we proved that by changing them we can eliminiate throttle hang. CRAZY!
I'm thinking it's some sort of dashpot function. Here's a post showing a physical dashpot on an Evo VII: LINK (pay no attention to the post, just the pics) I've never seen a USDM Evo have a physical dashpot. I'd say that function has been incorporated into the ISCV. My question now is, how exactly does that table work? Why does it only go to a load of 70?
Reply
Old Oct 25, 2010 | 06:39 PM
  #149  
widge's Avatar
Evolving Member
 
Joined: Mar 2010
Posts: 478
Likes: 1
From: Australia
I think i have resolved my issue, well made it alot better anyway in my 8 with 9653 ROM

I zeroed the below tables

- ISCV Demand RPM Adder [rpm > 4500, load > 170, speed > 12 mph]
- ISCV Demand RPM Adder (Moderated by Baro, IATS) (FFFF6EA8) (sub_204B6) [sub_1EFC0]

And made my Decel Fuel Cut all the same as table 2, the car drives much better now.
Reply
Old Oct 25, 2010 | 06:39 PM
  #150  
WRC-LVR's Avatar
Evolved Member
15 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: May 2008
Posts: 933
Likes: 13
From: Marietta GA
decel fuel cut tables

I have a 05 MR USDM Evo 8. Rom ID 96940011. I really need to stick with this version rather than 9653XXXX. But I desperately need the decel fuel tables and addresses so I can eliminate the nasty throttle hang at 4000. Already did the clutch switch test, switch is fine.

'Ive asked before in several threads, more than 6 months of asking, been ignored by everyone, but am asking again. Really need the tables for 96940011

Thanks very much

Milburn
Reply



All times are GMT -7. The time now is 06:11 PM.