SAFC II Write up

[busteds13]

well, since rexhunta all ready did a write up on the e-manage, immona do one on the SAFC IIcus some of us are flat broke, and cant mess with big expensive computers like you ballin' boys can.

first off, THE SAFC IS A CRUTCH, IF USED IMPROPERLY, IT OR MORE SPECIFICALLY, YOU CAN BLOW YOUR BELOVED CA TO SH11T!!!!!!!!!

Anywho. The SAFC has 11 wires in its harness, we, nissan guys do not use the pink, orange , or blue wires, i think the EVO guys use the pink/ orange wires to fool the MAFS, i honestly dont know exactly what those wires are for.

to start, run the SAFC wires throught the dash to the ECU i ran mine through the hole under the radio, above the Glove box, (cuz mine is mising at the moment) ziptied the whole shebang down, wires to the big ugly metal brace under there , and down to the ECU, so that everything looks nice and clean and neat.

Wiring, you need to locate the MAFS Wires, the ones you extended when doing the initial swap were green/black, and green/yellow, i used a SOHC KA MAFS, so i neede to use only one of those wires, but i wired them both in, i dunno why but my car ran like Crap otherwise , so i foud the two wires on the ECU, Theyre both across from each other, pins # 37 & 27, and Cut them in half about 3 cm from the ECU, dont loose them in the rats nest of wires down there, cuz you need em, the SAFC harness has one Yellow wire, i spliced ans sodered that yellow wire to the two MAFS wires that go in to the ECU. The two wires that go out the firewall and to the MAFS need to be spliced in to and sodered to the white wire that comes off of the SAFC harness.NOTE, i used both because i wired BOTH during the originall install, if when extending the wires to the MAFS in the engine bay you used only one, either the Greeen/black or the green/yellow, then use the one you wired and not the other.

the Grey wire coming off of the SAFC harness needs to be spliced in to the TPS wire from the ECU, which is a light green wire with a black stripe on it pin # 38 just strip the ECU wire 2-3 cm from the plug and splice & soder the grey wire in to it,

the green wire from the SAFC harness goes to the tach signal output, from the ECU, its a bright yellow and red wire, pin# 7

the purple wire from the SAFC harness goes to the knock sensor wire, its a thik solid white wire pin # 23, same deal, strip ECU wire, splice and Soder

the Red wire from the SAFC harness goes to an ECU power, i used the black with a white stripe down it wire thats on the end of the ECU, its pin #109, dont get that one confused with the thick white wire with a black stripe through it that is right next to it, thats injector # 1 and your SAFC will porlly turn on and off alot if you wire in to that one, you could also use pins # 59 & 49 which are above the solid black ECU ground wires on the opposite end.

the black and brown wires need to be spliced in to the ECU Ground wires theyre on the end of the ECU and theres two of them, i think you need to put both on the same wire, theyre solid black, pins # 60& 50 either one will do, the brown wire needs to be spliced in about 2 cm from the ECU, and the black wire needs to be spliced in 2 cm further towards the firewall

ECU---Black ground wire--------------------------------------------------------firewall

SAFC-------------------------------------^brown wire ------------------------------------------------------------------^black wire

if all is hooked up right then stuff will work rightI can not stress this more: SODER EVEREYTHING, then cover it thourgouly with electrical tape, if you do not you do not belong near cal electronicks

with the SAFC up and running i went to (from the top menu)3. etc.then down to sensor type to hotwire, and set everything to 01 in-----01 outflap to the same and pressure to the same

under car select in the etc menu i chose 4 cyl and the thr arrow pointing up to the right

make sure that under the etc. manue # 9 initialise is set to NO otherwise the SAFC will go back to stock settings.

as for settings and tuning youre on your own like me, GET A WIDEBAND, AND A DYNO, OR A FRIEND

ill post picks as soon as i get my hand on a camera

theres an ECU pinout in the stickies at the top.

r34 gtrjump in and yell if i did anyhting stupid, he helped get m ein the righ direction in terms of setting this thing up thanx man

my settings as of right now with stock everything:throttle point lo throttle15% high throttle 55%lo throttle, for now all corrections at 0hi throttle1000 +112000 +163000 +183600 +194000 +204400 +224800 +245200 +245600 +246000 +256400 +266800 +27

all street tuned and i think theyre horribly off, so im off to go retune, cuz the raqin just stopped, if anyone has suggestions or help they can offer, besides go standalone, or get an emanage, og get a chip it would be much appreciated.

[busteds13]

OK i think i goofed sumptin, cuz my AFR's would stay in the leanish range, for that setup^ at Zero Corrections it stayed in the Stoich range, and with Negaitve corrections my AFRS whent to the rich range at WOT, like 11 AFR or so..........

now i need help, did i wire sumptin wrong, or is something goofing mechanically, and a 10% throttle im seeing about 17 AFR is this ok or am i about to blow my engine to bits?

[Bwana]

17 is pretty darn lean. Somethin' ain't right!

[BEST1TUNING.COM]

u dont need big fancy computers lol

[Liquid_Neon]

WOW, +11... +27???that is a LOT of correction, on my pulsar running the CA18DE computer, I only need +2 to +5 correction on hi throttle!

Somethings wrong i might think? If a DE computer doesnt need much... your DET one should need even less.

[busteds13]

I know, i set everything to negative correct, and all got better right now ive gothi trottle:1000 -72000 -103000 -103600 -114000 -114400 -114800 -115200 -125600 -126000 -126400 -126800 -12

this all puts my AFR's in the comfy 12 range at WOT

i think i either got my MAFS wires from the SAFC swapped, or my stupid FPR is being a poop

[busteds13]

also at idle my car is seeing an AFR of 30 and at low throttle where ive not set anything it sees about 19-15 AFRis this normal or am i leaning out to death?

also ive no knock warnings yet...................

r34 i need your experienced advice........

[Bwana]

What kind of wideband do you have???

[DjLiquid]

I just wish someone could do the same for the CA16DE ecu+harness. I have some schematics I wrote out but im not 100% sure if they are correct

[busteds13]

ok just did another run at 100% throttle, at 6508 RPMs (its wet out) the car saw an AFR of 12.02 this is with a correction of -8% at 6400 RPMsis this good enough or should i enrichen it a bit more?ive got the LC-1 and im using my laptop to read exact AFRs and to record a graph of what they do so its kinda hit and miss at this point but im not leaning it out to the point of death at WOT which is what im worried about most, at low throttle the stock Comp does its own thing.....as for the CA16DE ecu= Harness, get a pinout of the ecu and ive outlined what wire goes to what, the pins will just be different, i used an sr20 redtop wiring schematick for mine and used the CA 18 pinout to find the pins i needed, but wait till r34 confirms that i didnt goof my MAF wires

[busteds13]

changed the corrections i get a nice AFR of 13-10low throttle tuning is a biot@#Liquid, what are you tuning with?

[Masterdebater]

at idle i see like +2

[DjLiquid]

I think I'll be running pretty much the same setup as you (SAFCII + LC-1) except for the turbo and injectors. I have a T28 w/ 550cc injectors as well as a CA16DE ecu

[Liquid_Neon]

changed the corrections i get a nice AFR of 13-10low throttle tuning is a biot@#Liquid, what are you tuning with?

Im just useing seat of my pants and a narrow band. I cant really afford a Wide band jsut yet. $300 is steep for a glowing gauge But even with the narrow band I can tell if im rich or lean. Plus the drop in pull lets me know before anything else.Also, my mpg goes down quickly if I go from +5 to +7 (I keep track of my mpg)

Wait... which liquid do u mean??

[good morning]

also at idle my car is seeing an AFR of 30 and at low throttle where ive not set anything it sees about 19-15 AFRis this normal or am i leaning out to death?

also ive no knock warnings yet...................

r34 i need your experienced advice........

You have a exhaust leak before the 02 (I hope it is a wideband). The engine will not run at 30 a/f

[busteds13]

liquid_neon, i meant you, if you wanna use mine get an O2 bung welded before your cat and we can tune with my laptop giving proper readings and such

immona check the leak, but i dont feel/see/hear one, but ill double check,and at part throttle i see about 16 to 15 AFR, its kinda weird

mebbe there is a leak.........



now that im using negative corrections i see normal AFR at WOT, did i sckrew sumptin up?

i thought i would have to add fuel not subtract.

[Liquid_Neon]

laptop wideband reading? sounds kinda neat... but how would i keep the bung from leaking afterwards?

Do dont know how to rom hack/burn/soder and crud like that.. do you?

[busteds13]

you would keep it plugged with a shot O2 sensor you planned on throwing away a awhile ago but never did, as for rom/hacking/burning/sodering, i can learn, i did all the electrical shi& on my car and several others, and have had no problems with the work, and im tuning my car right now with no previous experience, just intuition. sodering is easy ive been doing that for years

[Liquid_Neon]

then expect to hear from me for more then jsut mini meets in hyannis! I want to setup my ECU to accept roms so my pulsar stops running too rich when out of boost. Plus, im aiming a lil higher (arnt we all?)

[busteds13]

yah we defenitly are you got my # cus im online only a few hours a day and might get another job soon too so...203 889 1454 -misha

[busteds13]

Im just useing seat of my pants and a narrow band. I cant really afford a Wide band jsut yet. $300 is steep for a glowing gauge But even with the narrow band I can tell if im rich or lean. Plus the drop in pull lets me know before anything else.Also, my mpg goes down quickly if I go from +5 to +7 (I keep track of my mpg)

Wait... which liquid do u mean??

ii meant how are you tuning, SAFC, Chip, Eprom?

[Liquid_Neon]

ii meant how are you tuning, SAFC, Chip, Eprom?

Oh, I gotcha. Just SAFCII on my stock NA Pulsar ECU. I want to socket it and start learning/making roms.

[busteds13]

cooli just got a phone call from a very helpfull member on here whos gunna send me the proper manual for the SAFC, and i had my hotwire set wrong so im back at square one.....