NefMoto > Technical > Tuning > difference between lambda control and lambda desired
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Author Topic: difference between lambda control and lambda desired  (Read 4479 times)
dantt
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« on: October 14, 2014, 11:46:21 PM »
hi!

i have write a map for my tt 225 ( 2001 apx )
i have not understood the difference between lambda control and lambda desired.
i think lambda control is the field that i must check to verify if i'm lean or not .

with my experiments lambda control is gone above 1 ( lean ) but it is never gone under 1 ... why?

is safe to use this map?
is lambda desiret too rich ?

thanks Daniele
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bk56190
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« Reply #1 on: October 15, 2014, 09:25:42 AM »
Hello,

With narroband lambda, lambda control works only with lambda = 1.
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dantt
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« Reply #2 on: October 15, 2014, 12:00:16 PM »
Quote from: bk56190 on October 15, 2014, 09:25:42 AM
Hello,

With narroband lambda, lambda control works only with lambda = 1.
i have narroband ecu (512k) !!

how can verify if i'm lean or too reach?
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nyet
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« Reply #3 on: October 15, 2014, 12:01:42 PM »
http://s4wiki.com/wiki/Tuning#Fueling

Quote
Always start with this first. If you get fueling wrong, you will likely break something. Get this right, and do not try pushing the envelope in any tables until you are confident your fueling is where you want it. Always use a wideband sensor. Do not skimp on this. The stock narrow bands do not provide you with accurate enough readings. For stage 1-2+, adjusting fueling isn't technically necessary; however, a bit of extra fuel via KFLBTS isn't such a bad idea if you are running pump gas and a bunch of extra boost.
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bk56190
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« Reply #4 on: October 15, 2014, 02:32:37 PM »
As Nyet said, you can't without installing a wideband sensor.
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dantt
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« Reply #5 on: October 15, 2014, 11:46:51 PM »
Quote from: nyet on October 15, 2014, 12:01:42 PM
http://s4wiki.com/wiki/Tuning#Fueling


thanks again for your help.
for the moment i must use my sensor Sad
 in next map i'll take kflbts original's values .
I would like to reach about 1.5bar peak. my car is oem i think this is a "stage 2" map
« Last Edit: October 16, 2014, 01:16:26 AM by dantt » Logged
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