Notices
Evo X Engine Management / Tuning Forums Discuss the major engine management systems.

Question about ECU Reflashing.

Thread Tools
 
Search this Thread
 
Old Nov 14, 2008 | 04:07 PM
  #1  
Julian's Avatar
Thread Starter
Evolving Member
 
Joined: Oct 2008
Posts: 116
Likes: 0
From: New Joisey
Question about ECU Reflashing.

Im new to the open source ECU software, and here is something weird i experienced, perhaps someone could shed some light on the situation.

I purchased my evo with a reflash already in it, and decided to put in an HKS ECU to tune it myself, cause the reflash sucked basically.. I recently just got the Tactrix cable and decided to take a peek at my current ECU flash for the heck of it. When I read the current ECU data from the ECU to my laptop, all of the information was in jibberish.. The RPM values in the fuel table were all at 6023, there were inputs in the fuel table that varied from a target AF to the word "INF." to 673, all sorts of crazy readings. The timing table was all -2, and the RPMS were all 20,000+. None of the information looked readable in terms of the base maps i had looked at.

Now I deiced to upload a stock Evo8 map into my ECU, and the car would not even stay running despite being tuned with the FCON.

When i reloaded the original map, the car started up and ran fine..

Is there a difference if the person that flashed it used a different software or encoded the map somehow?

Any input to this??

I tired ECUFLASH 1.29, and 1.40 both did the same...Am I retarted??
Reply
Old Nov 14, 2008 | 04:45 PM
  #2  
Kooldino's Avatar
Evolving Member
15 Year Member
Photogenic
iTrader: (1)
 
Joined: Apr 2007
Posts: 261
Likes: 0
From: Jersey
First off, you DO have an Evo X, right?
Reply
Old Nov 14, 2008 | 06:42 PM
  #3  
Julian's Avatar
Thread Starter
Evolving Member
 
Joined: Oct 2008
Posts: 116
Likes: 0
From: New Joisey
Originally Posted by Kooldino
First off, you DO have an Evo X, right?
No Evo8, did I post this in the wrong forum? Whoops, mods please move for me..
Reply
Old Nov 19, 2008 | 11:30 AM
  #4  
Evo_Jay's Avatar
Evolved Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (17)
 
Joined: Jun 2005
Posts: 3,419
Likes: 14
From: Chico, CA (NOR-CAL)
you didnt have the correct definition file for your ECU.
Reply
Old Nov 19, 2008 | 03:54 PM
  #5  
Julian's Avatar
Thread Starter
Evolving Member
 
Joined: Oct 2008
Posts: 116
Likes: 0
From: New Joisey
Originally Posted by Evo_Kid
you didnt have the correct definition file for your ECU.
Would that apply for me pulling the file out of the ECU that was in there, and it being completely unreadable??
Reply
Old Nov 20, 2008 | 04:55 PM
  #6  
JuniorAWD's Avatar
Evolving Member
 
Joined: Dec 2003
Posts: 425
Likes: 0
From: NJ
Its "locked"
Some hex editing or running an unlocker will fix it up

Careful you dont loose the downloaded file either. When you reload another "base" map you have to swap the immobolizer code as well..
Reply
Old Nov 20, 2008 | 05:21 PM
  #7  
Julian's Avatar
Thread Starter
Evolving Member
 
Joined: Oct 2008
Posts: 116
Likes: 0
From: New Joisey
Originally Posted by JuniorAWD
Its "locked"
Some hex editing or running an unlocker will fix it up

Careful you dont loose the downloaded file either. When you reload another "base" map you have to swap the immobolizer code as well..
Gotcha..
where can i find an unlocker if you dont mind me asking..
Reply
Old Nov 22, 2008 | 11:27 AM
  #8  
Evo_Jay's Avatar
Evolved Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (17)
 
Joined: Jun 2005
Posts: 3,419
Likes: 14
From: Chico, CA (NOR-CAL)
Originally Posted by JuniorAWD
Its "locked"
Some hex editing or running an unlocker will fix it up

Careful you dont loose the downloaded file either. When you reload another "base" map you have to swap the immobolizer code as well..
It could be locked, but seeing how he downloaded it from the ECU, I believe thats not the case. With a locked ECU, it wont allow you to read (download) the map from the ECU.

Sinec he downloaded it and it read weird, it probably the definition file.
Reply
Old Nov 22, 2008 | 11:28 AM
  #9  
Evo_Jay's Avatar
Evolved Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (17)
 
Joined: Jun 2005
Posts: 3,419
Likes: 14
From: Chico, CA (NOR-CAL)
also, mods please move this to the ECUflash forum. thanks
Reply
Old Nov 22, 2008 | 11:29 AM
  #10  
Evo_Jay's Avatar
Evolved Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (17)
 
Joined: Jun 2005
Posts: 3,419
Likes: 14
From: Chico, CA (NOR-CAL)
Originally Posted by Julian
Would that apply for me pulling the file out of the ECU that was in there, and it being completely unreadable??
YES
Reply
Old Nov 22, 2008 | 01:43 PM
  #11  
JuniorAWD's Avatar
Evolving Member
 
Joined: Dec 2003
Posts: 425
Likes: 0
From: NJ
Originally Posted by Evo_Kid
It could be locked, but seeing how he downloaded it from the ECU, I believe thats not the case. With a locked ECU, it wont allow you to read (download) the map from the ECU.

Sinec he downloaded it and it read weird, it probably the definition file.
Yep, and with the style of "locking" you can download the map but it is scrambled.

No worries though, Julian got his unlocked file

Junior
Reply
Old Nov 22, 2008 | 02:37 PM
  #12  
Julian's Avatar
Thread Starter
Evolving Member
 
Joined: Oct 2008
Posts: 116
Likes: 0
From: New Joisey
Originally Posted by JuniorAWD
Yep, and with the style of "locking" you can download the map but it is scrambled.

No worries though, Julian got his unlocked file

Junior
thank you very much sir..
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
nj1266
ECU Flash
875
Jan 25, 2026 01:43 AM
evohq
General Engine Management / Tuning Forum
0
Feb 21, 2016 06:49 AM
PERRIN_Jeff
Evo X Engine Management / Tuning Forums
19
Jul 7, 2008 07:13 PM
b0ostedEV08
Evo Engine / Turbo / Drivetrain
66
May 14, 2006 01:05 PM
BLiu
Evo Engine / Turbo / Drivetrain
19
Jul 27, 2004 11:55 AM




All times are GMT -7. The time now is 05:00 PM.