Brain dead S-AFC question
#1
What R U thinking self?
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Brain dead S-AFC question
Okay, I have a S4 TPS so I have never really thought about this cause I keep it set at low 98 high 99 ...
but I am going to hook it up to my boost sensor tommorow, does that give me 3 stages? if I set low at say 40 and high at 70 ... does under %40 throttle run of the ECU alone, with no AFC intervetion?
so in other words ECU only from 0-40%
Low settings from 40-70%
High settings from 70-WOT?
is that how it works or am I hitting the pipe?
-Robert
but I am going to hook it up to my boost sensor tommorow, does that give me 3 stages? if I set low at say 40 and high at 70 ... does under %40 throttle run of the ECU alone, with no AFC intervetion?
so in other words ECU only from 0-40%
Low settings from 40-70%
High settings from 70-WOT?
is that how it works or am I hitting the pipe?
-Robert
#2
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i think you off a bit.
Let's see if i can explain by example.
If your low setting is 40%, and you have -15% @ 2000 rpm correction. The safc will -15% between 0 to 40% throttle for the given rpm. When you exceed 40% you are between Low and High (70). So at this point the safc will interpolate points by averaging the correction between Low and High correction percentages for that instant of rpm.
When you get above 70, you are above high, and you will get fixed correction percentage at the defined rpm.
Make sense? hrm... i hope i did
Let's see if i can explain by example.
If your low setting is 40%, and you have -15% @ 2000 rpm correction. The safc will -15% between 0 to 40% throttle for the given rpm. When you exceed 40% you are between Low and High (70). So at this point the safc will interpolate points by averaging the correction between Low and High correction percentages for that instant of rpm.
When you get above 70, you are above high, and you will get fixed correction percentage at the defined rpm.
Make sense? hrm... i hope i did
#3
What R U thinking self?
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Okay, so anything below low it uses the "low" setting?
Above the "high" point to uses only high?
and inbetween the 2 points it averages? thats what your saying?
thats a good thing really cause I thought about this long after I posted it, and if it was ECU controled below "low" it would not compensate for my larger primary injectors and I would run pig rich.
-Robert
Above the "high" point to uses only high?
and inbetween the 2 points it averages? thats what your saying?
thats a good thing really cause I thought about this long after I posted it, and if it was ECU controled below "low" it would not compensate for my larger primary injectors and I would run pig rich.
-Robert
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