Notices
Evo General Discuss any generalized technical Evo related topics that may not fit into the other forums. Please do not post tech and rumor threads here.
Sponsored by: RavSpec - JDM Wheels Central

Puzzling Issue for the Experts

Thread Tools
 
Search this Thread
 
Old Jul 16, 2008 | 04:14 AM
  #31  
PHDoc19's Avatar
Evolving Member
iTrader: (9)
 
Joined: Jun 2007
Posts: 344
Likes: 0
From: The Firing Range
I'm not having the problem but I am interested in the solution. So if the car has to relearn idle, are you guys running your car for a few days with the AC on all the time and then letting it stall every time it wants to? Sorry I am a little confused.
Old Jul 16, 2008 | 01:17 PM
  #32  
macevo8's Avatar
Newbie
iTrader: (1)
 
Joined: Jul 2007
Posts: 71
Likes: 0
From: Kanagawa, Japan
yes thats exactly what I did to solve the problem. Instead of preparing for stops by turning off the a/c like normal, I just dealt with the stalling for a while. The rpms gradually dropped less and less until they started holding around 900 rpm's It actually went away alot quicker than I expected, rcheung said a few days but for me it took 1-2 hours.
Old Jul 16, 2008 | 02:05 PM
  #33  
Mellon Racing's Avatar
Account Disabled
iTrader: (38)
 
Joined: Aug 2005
Posts: 9,319
Likes: 1
From: Virginia Beach, Virginia
every time you load a new ROM or reset the ecu it has to relearn and yes it's a bit painful for a bit but usually if the tune is solid and the engine is healthy (leak free, good compression) things will begin to fall into place.
Old Jul 16, 2008 | 06:38 PM
  #34  
JKD's Avatar
JKD
Thread Starter
Evolving Member
iTrader: (10)
 
Joined: Nov 2004
Posts: 471
Likes: 0
From: Cookeville, TN
Hey mellon, I still haven't had a chance to get that rom for you. I'll get that done asap.

Thanks again man!
Old Jul 16, 2008 | 07:16 PM
  #35  
Mellon Racing's Avatar
Account Disabled
iTrader: (38)
 
Joined: Aug 2005
Posts: 9,319
Likes: 1
From: Virginia Beach, Virginia
np, whenever you're ready...just remind me what it's about when you send it in case I forgot, a link to this thread would be helpful
Old Jul 16, 2008 | 10:26 PM
  #36  
EVOllie's Avatar
Evolving Member
iTrader: (10)
 
Joined: Jan 2007
Posts: 317
Likes: 1
From: Bel Air, Maryland
i had the same problem with my 03 with 56k miles. it was a boost leak at the intercooler coupler.
Old Oct 9, 2008 | 11:34 PM
  #37  
JKD's Avatar
JKD
Thread Starter
Evolving Member
iTrader: (10)
 
Joined: Nov 2004
Posts: 471
Likes: 0
From: Cookeville, TN
UPDATE:

Issue resolved!!

With the valuable advice from this thread, mellon, and my tuner I fixed the problem today. Apparantly, the ecu requires insane time to relearn itself for the A/C issues and normal idle.

I let the car warm up 100% and clicked the A/C on. The car battled for idle forever but after a solid 10-15 minutes it relearned it completely.


TIP -

Upon starting the car to relearn idle conditions. Be sure to not touch the gas pedal. Whether your relearning regular idle or A/C idle just let it fight for it's life. If you keep a close eye on it, you can actually see the RPM gauge gathering a stronger idle over time.

By doing this, it doesn't take 3-4 days to relearn idle and you won't have to deal with stalling out at every stop sign or redlight.


I figured I'd post this up to thank everyone and hopefully help other people who use the search function in the future for similar issues.

Once again, thanks everyone.
Old Oct 10, 2008 | 12:32 AM
  #38  
compscibOi's Avatar
Account Disabled
iTrader: (19)
 
Joined: Nov 2007
Posts: 2,083
Likes: 2
From: Whorelando, Florida
I had this occur to me but only for 15 minutes after the fuel pump was installed. Car sat and sputtered and fought for it's life. It finally came up to normal idle.


Glad you sorted it out.
Old Oct 11, 2008 | 01:59 AM
  #39  
macevo8's Avatar
Newbie
iTrader: (1)
 
Joined: Jul 2007
Posts: 71
Likes: 0
From: Kanagawa, Japan
You got it working just in time for winter!
Old Oct 11, 2008 | 12:43 PM
  #40  
JKD's Avatar
JKD
Thread Starter
Evolving Member
iTrader: (10)
 
Joined: Nov 2004
Posts: 471
Likes: 0
From: Cookeville, TN
Originally Posted by macevo8
You got it working just in time for winter!
Yeah man, I'm excited about that. I can handle the heat because I can roll the windows down. But the cold weather is a bit tougher to hack

Heat and Air ftmfw
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
browningderek
AEM EMS
73
Mar 2, 2019 09:35 PM
irwintan27
Evo X General
7
Nov 10, 2016 10:37 AM
imation
Evo Engine / Turbo / Drivetrain
11
Nov 2, 2011 03:04 PM
Kracka
ECU Flash
8
Oct 3, 2009 05:13 PM
STi2M3
Evo Engine / Turbo / Drivetrain
5
Jun 27, 2009 07:01 PM



Quick Reply: Puzzling Issue for the Experts



All times are GMT -7. The time now is 07:41 PM.