SAFC II Wiring writeup

[CRF_Rider]

Ok, I just installed my SAFC II. Everything seems to work great. I thought I would post the wiring here.

--SAFC II Wire Color-------ECU Wire Color--
Red (Power)-------------->Black/Yellow (+B on far right of connector)
Green (RPM)-------------->Green/White (IGT)
Purple (Knock)----------->Clear (KNK)
Grey (Throttle)----------->Black (VTA)
Brown (Ground)---------->Brown (E1)(Goes closest to ECU)
Black (Ground)----------->Brown (E1)(~1cm further down than the other E1 tap(farther from ECU))
Yellow (AFM)-------------->Yellow/Blue (Vs)(going out to CPU from SAFC)
White (AFM)--------------->Yellow/Blue (Vs)(coming from AFM to SAFC)

The Yellow and Blue wire is the only wire that gets cut. All the other wires you just splice into.

The SAFC's brown wire gets spliced between the ECU and the SAFC's Black wire. In other words both the SAFC's Black and brown wire get spliced onto the ECU's Brown wire but the SAFC's Brown wire needs to be the one closest to the ECU.

I hope all this makes sense.

This was done on an 85 P Type with Manual tranny. Use this info at your own risk. Please dont blame me if you wire it this way and you fry something. Always double check your wiring against a reliable schematic for YOUR car and the SAFC II manual.

EDIT: See the following post for issues using the SAFC II on an 82-84!!!
http://www.celicasupra.com/phpBB2/vi...?p=16471#16471

[82Spearco]

This post should be turned into a Sticky!

[Speed Racer]

This post should be turned into a Sticky!

Done.

[MKIIBeater]

Hey 007,

Hw do you like the afcII ? I was thinking of getting one as opposed to the s-afc, but does the display actually read knock sum? If the afcII display actually shows that then I am definetly going to bet getting one instead. Thanks,

Austin

[Speed Racer]

Hey 007,

Hw do you like the afcII ? I was thinking of getting one as opposed to the s-afc, but does the display actually read knock sum? If the afcII display actually shows that then I am definetly going to bet getting one instead. Thanks,

Austin

Austin,

I honestly have no idea because I don't have one.

82Spearco asked if the post could be made into a "sticky" so I did that - the person you might want to address this to is CRF_Rider (who originally started this thread).

Good luck!

[CRF_Rider]

I would definatly get the SAFC II. www.horsepowerfreaks.com has the best price on them and you get english instructions (for $5 extra).

It does monitor and display knock if you have a knock sensor. It also can store 2 fuel maps, record and playback data as well as peak recall I believe.

You wont be sorry.

[82TURBOSUPRA]

Can you adjust the SAFC 2 in real time or do you have to shut car off to re-enter fuel maps.Since the SS conversion Iam doing isn't doing to well,and the complex programing required and no real time programing.

[MKIIBeater]

So my question to you is, is your knock sensor working... and if so is yoru knock sum display on the afc working?

[CRF_Rider]

MKIIBEATER:

Yes my knock sensor is working and it does display knock AFTER you go through the knock sensor setup. To setup the knock sensor on the SAFC II goto settings, then knk sns (or something like that). It will give you a reading of a current knock value. Make sure the car is warmed up, then bring the engine up to 1500 rpm's and pugh the safc II joystick to the right. That should set the 1500rpm knock level. Do the same for the 3500 rpm knock setting and then go to the monitor mode. It should display knock if you ahve that item selected to be displayed. Note that I set mine after warming up the car for like 5 minutes. Then I drove it and had to set the knock level again as the base setting were not done when the car was at perfect operating levels.

82TURBOSUPRA:

I can change settings on the fly. I can verify this for you when I put it on the dyno tuesday to get it dialed in if you like.

Cheers

[MKIIBeater]

So I think what your getting at is that the afc will only display knock at a certain rpm, or is there some kind of menu or something that allows you to adjust fuel in real time automatiaclly incase the afc reads knock?

The knock display doesnt read in real time? If it does read knock sum in realtime then can you set it up to constantly show you knock? This is a big thing for me cause this could help tuning a lot if it will show knock sum in realtime. You can simply tune to a/f values, egt's and knock sum...this woudl be the ideal budget way if you cannot get on a dyno 8)