HOW TO: Wire up your Apex Super AFC - SR20 Forum
Nissan SR20 Forum Nissan SR20 Forum Header Right
HomeForumGalleryClassifiedsAbout UsAdvertiseContact Us

Welcome to the SR20 Forum forums.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

» Log in
User Name:

Password:

Not a member yet?
Register Now!
» Auto Insurance
» Featured Product
» Wheel & Tire Center

Go Back   SR20 Forum > What's New > Technical Information Library



Sr20Forum.com is the premier Nissan SR20 Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools
Old 01-11-2003, 05:56 PM   #1 (permalink)
banned

 
Join Date: Feb 2002
Location: IN A HOUSE

Feedback Score: 5 reviews
HOW TO: Wire up your Apex Super AFC

How to wire a SAFC
Im gonna try my best to help you by keeping it short and simple but to the point.


You will need a wiring diagram FSM or the one that came with the SAFC.

SAFC *******************************ECU
Red wire (IG Power)***** to*** Orange/Blue stripe
Green wire (RPM Signal)** to*** Blue/Black stripe
Grey wire (Throttle Signal)*to***White wire (not same)
Brown wire (Ground 1)*** to***White wire (same)
Black wire (Ground 2)**** to***White wire (same) 1 cm apart Blue wire = Not used
Pink wire = Not used
There is one more wire that isn't used to I think can't remember the color.

NOTE: (ECU MAF signal wire) Cut the Orange wire in half this is the MAF signal wire that will be running through the SAFC.

Yellow wire (MAF Output)* to***Orange wire connect to ECU side
White wire (MAF Input)*** to**Orange wire connect to MAF side

ALL CONNECTIONS ARE DONE AT THE ECU CLOSEST TO THE PIN AS REASONABLE POSSIBLE BUT NOT TO CLOSE MAYBE 2 to 2.5 INCHES AWAY FROM CONNECTOR (LEAVE ROOM FOR EROR).

1) Disconnect your battery.

2) Ground the SAFC now pay attention here because you can cause damage to the unit if grounds are improperly grounded.

a) There are 2 ground wires:
**Brown wire
**and
**Black wire
It is impairitive to connect the Brown wire closest to the ECU followed by the Black wire 1 cm thereafter the Brown wire.

3) Connect the (Red wire) to the appropriate wire on the ECU.

4) Connect the (Green wire) to the appropriate wire on the ECU.

5) Connect the (Grey wire) to the appropriate wire on the ECU.

6) Connect the (Yellow wire) to the appropriate wire on the ECU.
7) Connect the (White wire) to the appropriate wire on the ECU.

8) (Blue wire) is not used.

9) )Pink wire) is not used.

(9) Take your time and do it right.

If you have the manuel refer to that also I just did this because sometimes it easier to understand when broken down in parts.

91-94 B13 Sentra SE-R N3-a wiring diagram

-------------------------------------------------------------------------------------------------------------------------------------

Apex SAFC II

B13 ECU PINOUT


B14 ECU PINOUT




B13


B14 MODIFIED
Photobucket - Video and Image Hosting







This should also work for you B14 guys....


Last edited by charlie2020; 10-26-2006 at 06:28 PM.
charlie2020 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-11-2003, 06:15 PM   #2 (permalink)
HATER

 
Join Date: Jul 2002
Location: RI

Feedback Score: 4 reviews
thanks.... i'll be searching for this post in a month or 2
cause4alarm is offline   Reply With Quote
Old 01-12-2003, 04:15 AM   #3 (permalink)
SR20

 
Join Date: Oct 2002
Location: Wisconsin
Feedback Score: 4 reviews
Is this good for all nissans or is it for a particular one? sentra, 200sx, g20, nx2k? Other than that thanks for the info.....
BLACKMR2 is offline   Reply With Quote
Old 01-12-2003, 03:25 PM   #4 (permalink)
banned

 
Join Date: Feb 2002
Location: IN A HOUSE

Feedback Score: 5 reviews
It is for the B13 Sentra or any other Nissan that uses N3-a wiring scheme.
charlie2020 is offline   Reply With Quote
Old 01-28-2003, 10:01 PM   #5 (permalink)
Of Topic Count: 11,684

 
Join Date: Jul 2001
Location: Charlotte, NC

Feedback Score: 4 reviews
Thanks Charlie..my manual is in Japanese! this came in handy!!
__________________
God Bless America<><
D e n n i s ..aKa.. D - N y c e
Ncat
Even though you can't see him, GOD is always there O:-)
99 Mercedes S500
99 Mazda 626
01 IS300
xDennis is offline   Reply With Quote
Old 01-30-2003, 02:03 PM   #6 (permalink)
Of Topic Count: 11,684

 
Join Date: Jul 2001
Location: Charlotte, NC

Feedback Score: 4 reviews
Few tips:

1) Like charlie says, before you start wiring anything run a ECU diagnostic test to make sure everything is in working order. If you do not run one and you get errors after you install you don't know if its from the install or things that were previously messed up.

2) If your going to be using wire taps, which i encourage. On the sensative wiress such as the Orange Air Sensor or MAF wire you should not use the little taps. They do not penetrate the plastic enough to get a good reading and your car may get stuck in LIMP MODE.

3) Also, on the RPM wire, you should not use the taps unless you make it extremly tight. Failure to do this will result in your engine revs being displayed falsly and spiking. If you try tuning with wrong revs being displayed you could be tuning at the wrong RPM points.

Also, it is imparatve that you check...double check and get your mom to check This will eliminate room for error and Take Your Time!
xDennis is offline   Reply With Quote
Old 01-30-2003, 02:14 PM   #7 (permalink)
banned

 
Join Date: Feb 2002
Location: IN A HOUSE

Feedback Score: 5 reviews
...............Yes, and good point on the MAF and rpm wires.
charlie2020 is offline   Reply With Quote
Old 03-29-2003, 11:03 AM   #8 (permalink)
banned

 
Join Date: Feb 2002
Location: IN A HOUSE

Feedback Score: 5 reviews
TTT
charlie2020 is offline   Reply With Quote
Old 03-30-2003, 12:08 PM   #9 (permalink)
Fat Girls think I'm cute?

 
Join Date: Mar 2002
Location: Kissimmee, FL
Feedback Score: 0 reviews
LoL charlie NOW YOU PUT THE PINK WIRE! The other wire I believe is the orange one coming from the s-afc.

Ju§tin
__________________
S13...fell out of the ugly tree and landed in pieces.
http://www.streetinsanity.com/galler...signature2.jpg
Crono1321 is offline   Reply With Quote
Old 03-30-2003, 12:13 PM   #10 (permalink)
Seth's Dad

 
Join Date: Jul 2001
Location: KY
Feedback Score: 4 reviews
No way in hell would I use wire taps for any of these wires. If you want to do this right, solder. I wouldn't use wire taps to install a stereo, let alone mess with wires that are used to control the engine, yes it takes longer, but is the extra 30minutes worth knowing you aren't going to ruin an ECU/Engine?

Chris
__________________
2005 Subaru Legacy GT Limited
2003 Olds Mini-Van - say wha????
MauiBlueGride is offline   Reply With Quote
Old 03-30-2003, 12:38 PM   #11 (permalink)
banned

 
Join Date: Feb 2002
Location: IN A HOUSE

Feedback Score: 5 reviews
Quote:
Originally posted by Crono1321
LoL charlie NOW YOU PUT THE PINK WIRE! The other wire I believe is the orange one coming from the s-afc.

Ju§tin
You like that huh......lol............................hey I figure anyone following these instructions would just assume the wires not used, ummm just don't use them.
charlie2020 is offline   Reply With Quote
Old 04-04-2003, 02:44 PM   #12 (permalink)
banned

 
Join Date: Feb 2002
Location: IN A HOUSE

Feedback Score: 5 reviews
TTT
charlie2020 is offline   Reply With Quote
Old 04-07-2003, 05:44 PM   #13 (permalink)
From Miami to New York

 
Join Date: Sep 2002
Location: Queens, New York

Feedback Score: 13 reviews
What about the wiring diagram for a Roller Rocker Ecu, is there one at all?
__________________
Miss it
http://www.g20.net/gallery/data/500/medium/425Lip3.JPG

2007 Infiniti M35 Sport

Stuff for sale

MSD red wires $55 shipped, RRSR20 New 50lb Top Feed Inj $250, B13 93' MT ECU $70.00shipped
Domiken is offline   Reply With Quote
Old 04-27-2003, 06:45 PM   #14 (permalink)
SE-R Nut

 
Join Date: Feb 2002
Feedback Score: 0 reviews
I have a problem concerning the S-AFC installation. Where the air flow wire is supposed to be, there's a blank in the plug (no metal pin).

Could somebody give me the colors of the wires for the power, rev, air flow, ground, etc?

There's a blanck for the rev too...
__________________
http://www.dromadaire.com/nx2000
djisnx2000 is offline   Reply With Quote
Old 04-27-2003, 10:50 PM   #15 (permalink)
SE-R Nut

 
Join Date: Feb 2002
Feedback Score: 0 reviews
Nevermind, I figured it all out!
djisnx2000 is offline   Reply With Quote
Old 04-27-2003, 11:49 PM   #16 (permalink)
Tired!
 
coach's Avatar

 
Join Date: Feb 2002
Location: Dry Ridge, KY

Feedback Score: 43 reviews
Great writeup, it will come in handy if i ever get an safc. I love having stuff like this to come to.

Brent
__________________
Coach - EEN Member/The Fist Don't F with me!
1993 NX 2000 -- Slate Grey Metallic
1999 SE-L -- back to NA form

Lovefab.com Go Fast Depot - FTW!
coach is offline   Reply With Quote
Old 04-28-2003, 05:11 PM   #17 (permalink)
SE-R Nut

 
Join Date: Feb 2002
Feedback Score: 0 reviews
It was a newbie error that would have happend only to me. When you look at the S-AFC diagram with the ECU pin-out, take the harness beside it and the way the diagram is made is like if you'd look at the harnes plug from the wire side, not the blue side where the ECU pins enter.

That's why there was "missing" wires. Hopefully they were missing, imagine hooking everything up and nothing working.

But anyway everything worked up to this morning, but I drove it for 15 km and the engine stalled. I'll check that tonight.
djisnx2000 is offline   Reply With Quote
Old 08-16-2003, 03:11 PM   #18 (permalink)
I look good going slow

 
Join Date: Oct 2001
Location: Ajax, Ontario, Canada

Feedback Score: 0 reviews
The orange wire is not used!
__________________
2002 G20 Sport
1999 G20t
1997 Porsche Boxster

Last edited by CanadianG; 08-17-2003 at 10:56 AM.
CanadianG is offline   Reply With Quote
Old 08-30-2003, 04:59 PM   #19 (permalink)
SE-R Nut

 
Join Date: Jan 2002
Location: tampa, fl
Feedback Score: 1 reviews
ok, I need some help on my b14 wiring a s-afc II, I used my fsm to try and figure out the wires. Here is what i came up with. I would just like to make sure with someone who has done a b14 still obd-II ecu that these are correct. ill post the s-afc wires and the ecu wires i found.


S-AFC....................to......................... ...........ECU
Red wire (power supply) to Pin 38 color BLACK/RED STRIPE(Ignition switch)
Green wire (rpm signal) to pin 3 color BLUE/ORANGE STRIPE (Tachometer)
Purple wire (knock signal) to pin 54 color WHITE (knock Sensor)
Gray wire (throttle signal) to pin 33 color GRAY (throttle position sensor)
Brown wire (ground) to pin 43 color BLACK *****(engine ground)
Black wire (ground) to pin 43 color BLACK ***** (engine ground)
Yellow wire (mafs output) to pin 47 ORANGE (MAFS)
White wire (mafs input) to pin 47 ORANGE (MAFS)

***** Im not sure about the grounds because the ecm has about 6 total ground wires but the FSM says to use this pin to probe (-) tester probe when measuring. All the other grounds just say "engine ground"

Can anyone confirm these are the correct wires to tap on a b14 obd-II ecu? Please help asap. Thanks

Last edited by sr20ser1997; 08-30-2003 at 07:37 PM.
sr20ser1997 is offline   Reply With Quote
Old 08-30-2003, 05:00 PM   #20 (permalink)
I look good going slow

 
Join Date: Oct 2001
Location: Ajax, Ontario, Canada

Feedback Score: 0 reviews
just figure out which way the picture is situated as opposed to your harness connector.
CanadianG is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  SR20 Forum > What's New > Technical Information Library


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 02:36 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2
© The SR20 Forum - Content from this site may not be used without permission