LB7 Performance Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines Related To Performance And Longevity

is there a way to fool the ecu?

Thread Tools
 
Search this Thread
 
Old Aug 23, 2011 | 06:27 PM
  #1  
cfarley0210's Avatar
Thread Starter
|
Diesel Enthusiast
Joined: Jan 2010
Posts: 287
Likes: 8
From: oregon
Default is there a way to fool the ecu?

Is there a way to fool the ecu so you dont have the cold motor settings where it wont let all the power of the motor until its to opperating temp? Dodge with the edge can do it but i am not able to do it with my duramax
 
Reply
Old Aug 23, 2011 | 09:01 PM
  #2  
cummin_un_glued's Avatar
FormerVendor
iTrader: (1)
Joined: Mar 2007
Posts: 1,748
Likes: 107
From: Ash Flat Arkansas
Default

EFI Live can tune it out
 
Reply
Old Aug 23, 2011 | 09:12 PM
  #3  
turbostang7's Avatar
Diesel Wrench
Joined: Nov 2009
Posts: 919
Likes: 50
From: rexburg, Idaho
Default

why? its a safeguard thats a pretty good one, don't need to rod it till its warmed up anyways
 
Reply
Old Aug 23, 2011 | 09:47 PM
  #4  
cummin_un_glued's Avatar
FormerVendor
iTrader: (1)
Joined: Mar 2007
Posts: 1,748
Likes: 107
From: Ash Flat Arkansas
Default

i didnt say it was a good idea....just that it was possible
 
Reply
Old Aug 23, 2011 | 10:17 PM
  #5  
turbostang7's Avatar
Diesel Wrench
Joined: Nov 2009
Posts: 919
Likes: 50
From: rexburg, Idaho
Default

not trying to bash bud, and it wasn't directed towards you , just wanting the op to realy think if this is what he wants to do ya know yes it can be done, is it a good idea no!
 
Reply
Old Aug 24, 2011 | 10:20 PM
  #6  
cfarley0210's Avatar
Thread Starter
|
Diesel Enthusiast
Joined: Jan 2010
Posts: 287
Likes: 8
From: oregon
Default

Well its not to rod on it. It basically has about half throttle until its warmed up so just normal driving and merging can be hard sometimes when u need to go and u cant get up to speed
 
Reply
Old Aug 27, 2011 | 10:29 AM
  #7  
turbostang7's Avatar
Diesel Wrench
Joined: Nov 2009
Posts: 919
Likes: 50
From: rexburg, Idaho
Default Re: is there a way to fool the ecu?

Mine has no problem getting up to speed before warmup, is there possibly another issue?

Sent from my DROIDX
 
Reply
Old Aug 28, 2011 | 02:37 AM
  #8  
cfarley0210's Avatar
Thread Starter
|
Diesel Enthusiast
Joined: Jan 2010
Posts: 287
Likes: 8
From: oregon
Default

It moves pretty good i am just used to the pull of a worm motor. It might not help that its a 6 speed manual and it has to build boost up every shift on top of being cold
 
Reply
Old Feb 6, 2012 | 12:00 AM
  #9  
2004LB7's Avatar
Diesel Bomber
Joined: Dec 2010
Posts: 1,190
Likes: 113
From: Fool's Golden State
Default

EFI Live would be the way to go as cummin_un_glued said. [B0729 Max Injected Fuel Quantity (cold)] is the one to adjust. still not recommended though. keep it safe if you do.

mine has been raised. i am light on the throttle until the engine warms up. it is always nice to know that if you are in an emergency situation and need to get out of the way fast, or some other situation that requires this need for more power you have it.

you can probably do this by adding resisters to the coolant temperature sensor if it is not digital. this would of course mess up all of the compensator tables in the EMC program. so not recommended ether.

Best of luck
Jason
 

Last edited by 2004LB7; Feb 6, 2012 at 12:08 AM.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jguycj7
1st Generation Dodge Cummins 89-93
83
Jan 15, 2019 11:54 AM




All times are GMT -5. The time now is 02:16 AM.