Page 1 of 1
Idle Target Lambda
Posted: Sun Jun 08, 2008 5:18 pm
by magnEsium
I have large injectors, 750cc to be exact.
I have my Idle Target Lambda set for 13.8 but the A/F Command is still pointed toward 14.7~ and is correcting toward that while in closed loop
in Open Loop it will be fine and the AF Command will be 13.8
how can I get this to work correctly in closed loop?
Posted: Mon Jun 09, 2008 10:11 am
by Spunkster
Target lambda does not change anything unless you are autotuning or you are manually adjusting the values to get to your desired A/F. You cannot change the target idle A/F.
Posted: Mon Jun 09, 2008 11:04 am
by magnEsium
Spunkster wrote:Target lambda does not change anything unless you are autotuning or you are manually adjusting the values to get to your desired A/F. You cannot change the target idle A/F.
Well yes, I am tuning for 13.8 in open loop for idle, but once closed loop goes back on, it adjusts back to 14.7 taking out about 10 percent on the short term
\
Posted: Mon Jun 09, 2008 10:35 pm
by dustyboner
magnEsium wrote:Spunkster wrote:Target lambda does not change anything unless you are autotuning or you are manually adjusting the values to get to your desired A/F. You cannot change the target idle A/F.
Well yes, I am tuning for 13.8 in open loop for idle, but once closed loop goes back on, it adjusts back to 14.7 taking out about 10 percent on the short term
\
i basically have mine setup the same way. 750cc injectors, set at 13.8:1 at idle and -10 short term in closed loop but mine stays. can you post your .kal and a datalog?

Posted: Tue Jun 10, 2008 7:01 am
by JustinC
magnEsium wrote:Spunkster wrote:Target lambda does not change anything unless you are autotuning or you are manually adjusting the values to get to your desired A/F. You cannot change the target idle A/F.
Well yes, I am tuning for 13.8 in open loop for idle, but once closed loop goes back on, it adjusts back to 14.7 taking out about 10 percent on the short term
\
What he is saying is that unless you run open loop all the time then the target value will always be 14.7 during closed loop. Period.
Posted: Tue Jun 10, 2008 8:21 am
by magnEsium
JustinC wrote:magnEsium wrote:Spunkster wrote:Target lambda does not change anything unless you are autotuning or you are manually adjusting the values to get to your desired A/F. You cannot change the target idle A/F.
Well yes, I am tuning for 13.8 in open loop for idle, but once closed loop goes back on, it adjusts back to 14.7 taking out about 10 percent on the short term
\
What he is saying is that unless you run open loop all the time then the target value will always be 14.7 during closed loop. Period.
Talk about useless features then, you don't need a lambda target to tune for it lol.. it won't even show up in Lambda overlay anyway..
Im running open loop anyway now, part throttle tuned to 16.5--runs way better without the o2 sensor adjusting for 14.7