Notices
ECU Flash

having idle issue, wondering if i have stock rom?

Thread Tools
 
Search this Thread
 
Old Oct 20, 2011, 01:16 PM
  #1  
Evolving Member
Thread Starter
iTrader: (12)
 
simons3z's Avatar
 
Join Date: Aug 2008
Location: wisconsin
Posts: 103
Likes: 0
Received 0 Likes on 0 Posts
having idle issue, wondering if i have stock rom?

bought car with bigger injectors installed, car wouldn't even idle with them. I installed stock injectors, I don't believe the car was tuned for the bigger injectors, but was wondering if this is a stock rom or if it has been modified.

At idle, i have to give it +6% throttle to keep it idleing if i let off it will die instantly, adjusted idle set screw, idles better by itself but still only idles around 400-700rpm wanting to die. Any information would be more then appreciated.

Thanks!
J
Attached Files
File Type: hex
jsrom.hex (256.0 KB, 0 views)

Last edited by simons3z; Oct 20, 2011 at 02:23 PM.
Old Oct 20, 2011, 02:45 PM
  #2  
Evolved Member
iTrader: (10)
 
Raptord's Avatar
 
Join Date: Mar 2009
Location: Gatineau, Quebec, Canada
Posts: 3,525
Received 19 Likes on 14 Posts
From looking at the timing map I'm 99% certain that that's not a stock rom, however as to whether the idle tables are stock, that I don't know.
Old Oct 20, 2011, 03:57 PM
  #3  
Evolving Member
Thread Starter
iTrader: (12)
 
simons3z's Avatar
 
Join Date: Aug 2008
Location: wisconsin
Posts: 103
Likes: 0
Received 0 Likes on 0 Posts
I called precision up they said the injectors i have are 780s, the current scaling on them is 696. Maybe they were, the iav valve was completely bottomed out, i'll toss the 780s back in and see what it does...thanks for the feedback!
Old Oct 20, 2011, 09:29 PM
  #4  
Evolving Member
Thread Starter
iTrader: (12)
 
simons3z's Avatar
 
Join Date: Aug 2008
Location: wisconsin
Posts: 103
Likes: 0
Received 0 Likes on 0 Posts
put the 780s back in, idles just as bad if not worse. have a log of it on cold start up on and off gas if anyone is interested in looking at it.
thanks again!
J
Old Oct 25, 2011, 10:48 PM
  #5  
Evolving Member
Thread Starter
iTrader: (12)
 
simons3z's Avatar
 
Join Date: Aug 2008
Location: wisconsin
Posts: 103
Likes: 0
Received 0 Likes on 0 Posts
anyone else throw some incite?
Old Oct 30, 2011, 07:20 AM
  #6  
Evolving Member
iTrader: (4)
 
DREVO978's Avatar
 
Join Date: Apr 2009
Location: Mass.
Posts: 139
Likes: 0
Received 1 Like on 1 Post
i had idle issues before and went thru alot of things.. at the end i noticed my cam position sensor was cracked right at the neck.. i coldnt even tell by looking at it till i moved it.. but i replaced it with a new one and all went away.. at first it started with idel and then it worsnt to not even wanting to start right.. not sure if itll help but figure i just toss this at ya.. ..
Old Oct 30, 2011, 04:58 PM
  #7  
Evolving Member
Thread Starter
iTrader: (12)
 
simons3z's Avatar
 
Join Date: Aug 2008
Location: wisconsin
Posts: 103
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by DREVO978
i had idle issues before and went thru alot of things.. at the end i noticed my cam position sensor was cracked right at the neck.. i coldnt even tell by looking at it till i moved it.. but i replaced it with a new one and all went away.. at first it started with idel and then it worsnt to not even wanting to start right.. not sure if itll help but figure i just toss this at ya.. ..
i'm adjusting the biss screw, it helps with idle; with it all the way out it will idle barely till warm at 500rpm then idle off at 1k once at operating temp. Just replaced the aperature seals, along with boost leak tested to 30psi; everything is perfect. I'll check the CAS along with maybe getting my rom checked over. Thanks Drevo! any other positive information would be very helpful!
Old Oct 31, 2011, 10:06 PM
  #8  
Evolving Member
Thread Starter
iTrader: (12)
 
simons3z's Avatar
 
Join Date: Aug 2008
Location: wisconsin
Posts: 103
Likes: 0
Received 0 Likes on 0 Posts
it was the tune; all fine now.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mctonyb
General Engine Management / Tuning Forum
3
Sep 11, 2016 09:41 PM
darwin_evo
Evo X Engine Management / Tuning Forums
36
Jul 11, 2013 07:10 AM
03evilution
Evo Engine / Turbo / Drivetrain
41
Feb 8, 2013 11:57 AM
jwick76
Lancer Engine Management / Tuning Forums
8
Dec 12, 2012 09:54 AM
dsevo
ECU Flash
33
Feb 22, 2012 10:08 AM



Quick Reply: having idle issue, wondering if i have stock rom?



All times are GMT -7. The time now is 08:39 AM.