Apex~i SAFC (II) Discussion/Help Thread

[Kustomatix]

you guys are expecting help and youre not gonna get it so dont ask. meet up with someone that you know knows their shit about them. on 2 stock srt4s safc can be totally different. so it doesnt matter your mods no ones gonne give you guys answers.

heres a little lamens terms just to help.

sens type- set it to pressure 10-10 or 1-1
car select- 4cy northeast
low/hi- these are your throttle percentages. when your throttle % reaches that number, it will use your hi or low map
low map- pull fuel here for low throttle
hi map- pull fuel here for hi throttle (wot for example)
dec air- dont beleive we use that feature on our cars
ne points- these are the rpm points on your hi-lo maps you can change them if you want

ive only have mine installed for about a week. this is what ive learned on my own. if you start tinkering with yours and you blow up your car, its not my fault. this is why no one wants to help. evvvveryyyones is different.

[sour kraut]

Quote: Originally Posted by makinasvp

Man, I wish someone could just tell us exactly what to dial in on all the set-ups on the Apexi SAFC II for a stock SRT-4 stage 0 once it is installed, with an Injen SRI and a 3 inch turbo back... so i dont have to take it to a dyno yet... lol
I am willing to buy an AEM wideband o2 if it is really recommended.
Hopefully someone in here makes my wish come true... lol
I need these questions answered on a Stage 0 with the mods i listed above...
1.SesorType (what do we set Sens.type and Sens.No at, and what does this mean?)
2.Car Select (oviously we set the Cyl to "4" but what the hell is the "Thr" and the arrow for?)
3.Sensor chk (what is this?)
4.Disp Scale (Page Ranking:, Ne:, Cr: what do these do, and what do we set them to?)
5.WarningSet (Aflw:, Prw:, Karw:, Knkw:, Revw: What are these and what do we set them to?)
6.Pass Lock (I guessing this is a lock so no one can mess with your settings?)
7.VFD Bright (Brightness of the display.)
8.ProgramVer (What the hell is this?)
9.Initailize (Initailize all the info in ect. mode.)

After the ect. Mode is Initailized you go to the Setting Menu and tune that?


SettingMenu

1.Hi-Thrtl (what does this do and what should it be set to? Please go into detail.)
2.Lo-Thrtl (what does this do and what should it be set to? Please go into detail.)
3.TH-Point (Lo, Hi, what does these do and what should they be set to?)
4.Ne-Points (what do these do and what should they be set to? Please go into detail.)
5.Dec.-Air (what does this do and what should it be set to?)
6.Knk Set (what does this do and What should it be set to?)
7.DataFile (What does this do?)

the best setting for them please... Thanks much, you guys rule!!!!

Some of you guys really need to learn to read a manual before you install something! I'm getting tired of seeing the same question over and over when all you have to do is READ!

with that said, here you go.
1.SensorType should be set to pressure with the Sens.No's being 10IN 10OUT
2.Car Select should be set to 4 under cyl and the arrow pointing up in the direction of the knob(this is telling the safc that the voltage increases as the throttle is opened)
3.Sensor check does exactly what it says, It lets you see the voltage on the map and tps wires.
4.Display Scale sets the parameters for the playback screen(THIS IS UNNEEDED FOR IT TO RUN SO DON'T WORRY ABOUT IT RIGHT NOW, LATER READ UP AND FIGURE IT OUT!).
5.warning set lets you set warnings,DUH. Not needed to run.
6.Pass lock lets you lock the settings for your hi and low settings, your ne points, and the corrections for each ne point. Once it's locked, you can't change them until you unlock it again.
7.You should be able to figure this out.
8.Program Version, something like windows xp service pack2. It just tells you the software version in the controller.
9.Initialize resets all the settings back to default! DO NOT hit yes here, you will lose all your settings.


Setting menu

1.Hi-Thrtl This is were you remove fuel after setting your ne points for any percentage above what is set as high in TH-point settings. A negative number is removing fuel, a positive number is a problem.

2.Lo-Thrtl This is the same as high throttle except it effects any percentage below your low throttle setting in the Th-point settings.

** Any point between your high and low settings will be interpolated to supply the difference between the 2 for a given rpm.

3.Th-point Sets your high and low throttle percentages. Anything above the high percentage is effected by the hi thrtl map while anything below the lo percentage is effected by the lo thrtl map.

4.Ne-Point This is where you set your rpm points that you wish to alter your fuel.

5.Dec.-air is used for cars that use a maf, so you don't use it.

6.Knk set is how you set the sensitivity of the unit for your knock sensor, which is too sensitive to work anyway so you don't need to hook it up.

7.Data File is where you can change between the 2 diffrent maps that you can set up.

I refuse to give any specific settings for anything stated above because you can really harm your car using someone else's settings. PLEASE become familiar with the use of an item before you install it, it will save everyone time and can save you from having to buy a new motor!

[19 psi]

Thanks guys

Manual for SAFC II:
tp://www.apexi-usa.com/pdfInstallation/15.pdf
Thanks for this too. I've printed all 64 pages and now I'm going to read it. Hopefully I'll have no more questions afterward

[makinasvp]

hahahaha!!

[silverstreak]

Hey toyoguru, I am hoping you can help me. I running into a problem where my car stutters at low rpm's. I had white rob give me a hand with some of my settings it actually did help, but it still does it at low rpm's. Everything that is been said in this thread I have my AFC set at. I am running from the TPS wire, lo throttle 30% w/ -1%, and hi throttle 70% w/ -3% across the board. My NE Points are as follows;
1 - 1000
2 - 2000
3 - 3000
4 - 4000
5 - 5000
6 - 5500
7 - 6000
8 - 6500 rpms. Thanks to whiterob he helped me set this up, He also thouhgt that the reason my car was acting this way was because I had my boost controller's start boost set too high, so I lowered where he explained to me where it should be, but again the car is not doing it alot. I have checked the wires eveerything looks good.
Sorry for the long post, but I need some help.

[sour kraut]

Silverstreak, what rpm's are low, and what throttle percentage does it do it at? Also, how did you run your wires? My map signal picked up all kind of noise when I ran it to close to the motor, I ended up having to rerun it and make sure it was shielded. This was all because of motor mounts shaking the whole front end. It was really bad with the ac on. Post up some more detailed info and we can try to help.

[silverstreak]

Quote: Originally Posted by Sour Kraut

Silverstreak, what rpm's are low, and what throttle percentage does it do it at? Also, how did you run your wires? My map signal picked up all kind of noise when I ran it to close to the motor, I ended up having to rerun it and make sure it was shielded. This was all because of motor mounts shaking the whole front end. It was really bad with the ac on. Post up some more detailed info and we can try to help.

I am running of the TPS wire. Also it's happening at low RPM's (under 3000), the car also backfires. I have changed the MSD coil back to stock, but no luck still. It's funny you mention motor mounts, I do need one I will be ordering them next week, but how much will this affect it.

[sour kraut]

If the wiring is good a motor mount shouldn't hurt. I just ran mine wrong, that's all. As far as the backfire and stumble, sounds like you're still getting too much fuel in the low settings. I would suggest changing from -1 to -3 on the low settings so that you know no matter what throttle percentage you're at it's always gonna pull 3%. If that doesn't work, try raising the lo throttle up to 35%. I wouldnt go any higher than 38 but this might help out. Are you in boost when it does this or just anytime?

[silverstreak]

Quote: Originally Posted by Sour Kraut

If the wiring is good a motor mount shouldn't hurt. I just ran mine wrong, that's all. As far as the backfire and stumble, sounds like you're still getting too much fuel in the low settings. I would suggest changing from -1 to -3 on the low settings so that you know no matter what throttle percentage you're at it's always gonna pull 3%. If that doesn't work, try raising the lo throttle up to 35%. I wouldnt go any higher than 38 but this might help out. Are you in boost when it does this or just anytime?

Actually it only does it when I drive it slow. Under 3000 rpms, It never acts like that when I am in boost. Ok so -3% at low throttle, what about hi throttle? I have hi throttle set at -3% now. Also you suggest to move the lo throttle % to 35, I am going to try that.

[sour kraut]

Just try one thing at a time! Change the low to -3 and leave the high alone. Go for a ride to see if it helps. If it doesn't or makes it worse, change the low settings back to -1 and then change the low throttle setting to 35 and go for another drive. If that doesnt help, then try a combination of the 2. You only want to change one variable at at time when trying to solve a problem like this.

[silverstreak]

ok man, thanks alot, I will try this.

[WhiteRob1984]

silverstreak, sorry I hung up on you yesterday, lol, my Dad was being a dick.

Try what Sour said. I'd suggest (regardless if you've already done it) change your plugs and wires. Gap your plugs at .035. And since you put stock coil back on, you should be good there. If that doesn't work (and remember, if you've already done it, do it again), then I'd suggest pulling that additional -2% in LO throttle. So that like Sour said, you'd be pulling -3% at all time regardless of throttle position.

On your WGA, what are you spiking/holding with the Profec B turned off? I'm trying to eliminate other problems before we start messing with your SAFC-II...

Get back to me...

Thanks!

[silverstreak]

I am pulling 12-13 psi w/ the boost controller off.
As far as the spark plugs i will order new ones, and gap them at .35, but don't know which ones to get.
Also my MSD wires are fairly new, change them back to the stock ones?
I put the MSD back on, should I go back to the stock one again.

[TJ1376]

New Thought:
People are running the map sensor to sense for boost instead of the TPSensor for throttle control. Here's an idea.
Is there a way to hook this wire up to a switch so when I run race gas, I can have a whole different fuel map? Think like HOM on Stage 2. I haven't thought this through all the way, but if you had a switch that provided the 5 volts required, and then on one end had a resistor that kept the voltage on the low %, then on the other pole of the switch you eliminated the resistor so the SAFC saw the full 5 volts, you could then run two different fuel maps for two different fuels.

Anyone care to help me think through this?

TJ

[toyoguru]

You could just tune the other fuel map..as the safcII has two different files for two maps...Just tune the one with race gas leaner..