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SAS LAMBDA and the like
5 posts · Started by DribbleDuke · 29 Mar 2010
Post 2 by Twisted Jester,
#2[quote="soundccduke"]Secondary air into the exhaust through the SAS is rendered obsolete with the AKRO mapping. Yes?
quote]
No. SAS is still active with the Akra Map.
quote]
No. SAS is still active with the Akra Map.
Post 3 by DribbleDuke,
#3Is the SAS affected or effected by the LAMBDA signals or is the SAS a constant secondary air supply. Is it controlled through a thermastat ?
If SAS are shut down should LAMBDA be shut down and IF LAMBDA is shut down should SAS be shut down. I guess the question is can the ECU get perturbed and confused with any misinformation or bunk Information? LAMDA sends info that there is not enough oxygen in the exhaust gases opening SAS, SAS is shut down so LAMBDA tells ECU to lean out the fuel message. possible leaning the condition to create popping on decelleration or other quite dasturdly noises.
If SAS are shut down should LAMBDA be shut down and IF LAMBDA is shut down should SAS be shut down. I guess the question is can the ECU get perturbed and confused with any misinformation or bunk Information? LAMDA sends info that there is not enough oxygen in the exhaust gases opening SAS, SAS is shut down so LAMBDA tells ECU to lean out the fuel message. possible leaning the condition to create popping on decelleration or other quite dasturdly noises.
Post 4 by ktmguy,
#4Search is your friend, all these questions have been answered in this forum before...
But hey, for you only, here we go:
SAS only works when on overun (trottle closed, slowing down, revs still up) It bleeds air in the exhaust to clean the cat. Controled by ECU and works also on the akra map.
Lambda sensor or O2 as called on this forum are 2 sensors in the downpipes and tells the ECU if the mixture is rich or lean. On low rpm and small trottle openings it tries to lean out the mixture for green reasons. (hence some bikes are snatchy when cruising)
Akra map does away with it, PCIII comes with plug in resistors to eliminate this.
But hey, for you only, here we go:
SAS only works when on overun (trottle closed, slowing down, revs still up) It bleeds air in the exhaust to clean the cat. Controled by ECU and works also on the akra map.
Lambda sensor or O2 as called on this forum are 2 sensors in the downpipes and tells the ECU if the mixture is rich or lean. On low rpm and small trottle openings it tries to lean out the mixture for green reasons. (hence some bikes are snatchy when cruising)
Akra map does away with it, PCIII comes with plug in resistors to eliminate this.
Post 5 by DribbleDuke,
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