safc II wiring help please verify this is correct

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98240
Posts: 810
Joined: Wed Dec 28, 2005 10:20 am

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Ok I think I might have wired my safc up wrong and was wondering if this is the correct way for the maf. How I think it goes is you cut the wire then connect the output to one of the sides that you cut and the input to the other? Is this correct?


98240
Posts: 810
Joined: Wed Dec 28, 2005 10:20 am

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Well I found out that my wiring was incorrect that is why I could not get past 2500rpm so I rewired it and now it is fine.

The only problem I have now is my wideband and tuning. What seems to be happening is I set the ne point to +50 and that is the only way I can get the wideband to go down. So now it reads 17a/f on the wideband. Cant get it to go any lower. If I go to the negative the reading goes of the map. Any suggestions?

Florida240sx
Posts: 11114
Joined: Thu Jul 01, 2004 7:17 am
Car: 1993 Nissan 240SX Hatch 5spd
2012 Nissan Altima S coupe 2.5
Location: DeLand FL

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What are you messing with ne points? and thought ne point are rpms not %. Go to fuel map low and high. 17 a/f at idle? Mine likes to sit around 16-16.5 at idle. When driving 13's-10's.I had to turn my AC so my rpms would be at 1k so I could affect my idle. Safc doesn't do anythign for under 1k rpms...IDLE

98240
Posts: 810
Joined: Wed Dec 28, 2005 10:20 am

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Oh yeah ne points are rpm. Even at 1400 rpm my a/f is still 17 I think at 2000 they drop to about 14 then 2500 and higher they are at 17a/f The percents I have for lo throttle are like +50 If I have anything lower the wideband reads real high.

Florida240sx
Posts: 11114
Joined: Thu Jul 01, 2004 7:17 am
Car: 1993 Nissan 240SX Hatch 5spd
2012 Nissan Altima S coupe 2.5
Location: DeLand FL

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Where is your wideband located and is it hooked up correctly? What kind of injectors you got?

98240
Posts: 810
Joined: Wed Dec 28, 2005 10:20 am

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Wide band is hooked up where the 1st o2 sensor use to be370cc

Florida240sx
Posts: 11114
Joined: Thu Jul 01, 2004 7:17 am
Car: 1993 Nissan 240SX Hatch 5spd
2012 Nissan Altima S coupe 2.5
Location: DeLand FL

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Doesn't make sense....Because you should be subtracting with those injectors until your in boost.


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