EvolutionM - Mitsubishi Lancer and Lancer Evolution Community

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

IDC maxxed out?

Thread Tools
 
Search this Thread
 
Old Mar 21, 2011, 07:15 AM
  #16  
EvoM Guru
iTrader: (6)
 
tephra's Avatar
 
Join Date: Feb 2007
Location: Melbourne, Australia
Posts: 9,486
Received 66 Likes on 42 Posts
LPG power??
tephra is offline  
Reply Like
Old Mar 21, 2011, 09:54 AM
  #17  
Evolved Member
iTrader: (7)
 
chetrickerman's Avatar
 
Join Date: Dec 2008
Location: Colorado Springs
Posts: 575
Received 1 Like on 1 Post
Originally Posted by xhomm02
Yes, they are updateted I think every 4 minutes running int the right mode (idle, closed loop cruise)
what about when at WOT?
chetrickerman is offline  
Reply Like
Old Mar 21, 2011, 11:02 AM
  #18  
Evolving Member
Thread Starter
 
xhomm02's Avatar
 
Join Date: Sep 2008
Location: Czech rep.
Posts: 318
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by chetrickerman
what about when at WOT?
While in open loop trims are not calculated, but middle trim is used to calculate IPW.
xhomm02 is offline  
Reply Like
Old Mar 21, 2011, 11:06 AM
  #19  
Evolving Member
Thread Starter
 
xhomm02's Avatar
 
Join Date: Sep 2008
Location: Czech rep.
Posts: 318
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by fostytou
Agreed... get a wideband! (especially if you have a LPG setup that is probably pushing alot of power). If you can install a LPG setup, surely you can install a wideband.
LPG does not provide more power that pump gas (actually about 3% less), but is much cheaper here :-).

It is not so easy to get anything for cars here - everything is horribly expensive, like twice or 3 times the price in US :-((((( That´s why I will order WB in US as well...

Any experience with this? http://www.motorsportsinnovations.co...gauge_kits.htm
xhomm02 is offline  
Reply Like
Old Mar 21, 2011, 07:10 PM
  #20  
Evolved Member
iTrader: (7)
 
chetrickerman's Avatar
 
Join Date: Dec 2008
Location: Colorado Springs
Posts: 575
Received 1 Like on 1 Post
Originally Posted by xhomm02
While in open loop trims are not calculated, but middle trim is used to calculate IPW.
then what does the ECU use to make AFR's richer if there is a lean spot in the tune?
chetrickerman is offline  
Reply Like
Old Mar 21, 2011, 07:25 PM
  #21  
EvoM Guru
iTrader: (6)
 
tephra's Avatar
 
Join Date: Feb 2007
Location: Melbourne, Australia
Posts: 9,486
Received 66 Likes on 42 Posts
the ECU doesn't know there is a lean spot in the tune...

at WOT anyways

before my "disable LTFT from affecting WOT" the ECU would use the LTFT High as a correction for running WOT... But I figured that was bad/dangerous so I changed that behaviour with that patch...
tephra is offline  
Reply Like
Old Mar 21, 2011, 08:04 PM
  #22  
Evolved Member
iTrader: (7)
 
chetrickerman's Avatar
 
Join Date: Dec 2008
Location: Colorado Springs
Posts: 575
Received 1 Like on 1 Post
Originally Posted by tephra
the ECU doesn't know there is a lean spot in the tune...

at WOT anyways

before my "disable LTFT from affecting WOT" the ECU would use the LTFT High as a correction for running WOT... But I figured that was bad/dangerous so I changed that behaviour with that patch...
ok, but doesnt the ECU read the O2 sensor, and it would see that the AFR is 12 when it should be richer, so next run the ECU inputs a trim to increase fuel there?

or am I wrong?
chetrickerman is offline  
Reply Like
Old Mar 21, 2011, 08:07 PM
  #23  
EvoM Guru
iTrader: (6)
 
tephra's Avatar
 
Join Date: Feb 2007
Location: Melbourne, Australia
Posts: 9,486
Received 66 Likes on 42 Posts
your wrong

The O2 sensors are narrowband.

This means they are only good for reading above or below 14.7:1. Nothing else.

ie NB's will say "your above 14.7", or "your below 14.7", they dont tell you by how much...
tephra is offline  
Reply Like
Old Mar 21, 2011, 08:11 PM
  #24  
Evolved Member
iTrader: (7)
 
chetrickerman's Avatar
 
Join Date: Dec 2008
Location: Colorado Springs
Posts: 575
Received 1 Like on 1 Post
damn. then i dont get this.

when i reset my ECU, it resets my fuel trims. and when i do a WOT run, my AFR's are around 12's until 6k rpms, but then after a few WOT runs, my AFR's are at low 11's all the way til redline.
chetrickerman is offline  
Reply Like
Old Mar 21, 2011, 08:14 PM
  #25  
EvoM Guru
iTrader: (6)
 
tephra's Avatar
 
Join Date: Feb 2007
Location: Melbourne, Australia
Posts: 9,486
Received 66 Likes on 42 Posts
have you done my patch:
https://www.evolutionm.net/forums/ev...t-fueling.html

Probably not, so that means your LTFT_High is affecting your WOT pulls.

But because of how the NB's work its pretty useless, hence why I disable it...
tephra is offline  
Reply Like
Old Mar 21, 2011, 08:17 PM
  #26  
Evolved Member
iTrader: (7)
 
chetrickerman's Avatar
 
Join Date: Dec 2008
Location: Colorado Springs
Posts: 575
Received 1 Like on 1 Post
not that i know of.

What would your patch change about this?
chetrickerman is offline  
Reply Like
Old Mar 21, 2011, 08:18 PM
  #27  
EvoM Guru
iTrader: (6)
 
tephra's Avatar
 
Join Date: Feb 2007
Location: Melbourne, Australia
Posts: 9,486
Received 66 Likes on 42 Posts
read the thread...
tephra is offline  
Reply Like
Old Mar 21, 2011, 08:22 PM
  #28  
Evolved Member
iTrader: (7)
 
chetrickerman's Avatar
 
Join Date: Dec 2008
Location: Colorado Springs
Posts: 575
Received 1 Like on 1 Post
ok, thanks for the info
chetrickerman is offline  
Reply Like
Old Mar 22, 2011, 08:09 AM
  #29  
EvoM Community Team
iTrader: (15)
 
fostytou's Avatar
 
Join Date: Sep 2006
Location: Aurora, IL
Posts: 3,143
Received 6 Likes on 6 Posts
Originally Posted by xhomm02
LPG does not provide more power that pump gas (actually about 3% less), but is much cheaper here :-).

It is not so easy to get anything for cars here - everything is horribly expensive, like twice or 3 times the price in US :-((((( That´s why I will order WB in US as well...

Any experience with this? http://www.motorsportsinnovations.co...gauge_kits.htm
Apologies then... I didn't know a ton about the technology, but I was always under the impression that it provided a boost in fuel economy and power in diesel engines (and that people on pump gas didn't run it because large turbo-diesels had more room for a big propane tank)
fostytou is offline  
Reply Like
Old Mar 22, 2011, 08:45 AM
  #30  
Evolving Member
Thread Starter
 
xhomm02's Avatar
 
Join Date: Sep 2008
Location: Czech rep.
Posts: 318
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by fostytou
Apologies then... I didn't know a ton about the technology, but I was always under the impression that it provided a boost in fuel economy and power in diesel engines (and that people on pump gas didn't run it because large turbo-diesels had more room for a big propane tank)
No no, it is widely used in petrol engines here in Europe due to low cost. But however I will get the WB to be sure it works right, even though I see only very occasional 1-2 knock sum at WOT.
xhomm02 is offline  
Reply Like



Advanced Search
Quick Reply: IDC maxxed out?


Reply Closed Thread Share

All times are GMT -7. The time now is 09:07 AM.