I was told I would get better response posting in this forum with SAFCII questions.

So...here's the deal. Previously, I had the wires for connecting to the MAF circuit backwards (yellow towards engine..not ECU). I was throwing a CEL obviously and have corrected the wiring. It now operates normally (as near I can tell) with no CEL light. I have the blue wire connected to ONE of the O2 sensor wires and not both as in JIME's write up. First question...does that blue wire need to be connected to both left & right O2's or just one?

Now for the issue...when driving and I give partial throttle it goes HELLA rich and starts bogging, bouncing back, bogging, bouncing back. If I go to WOT, the issue seems to go away but is still running HELLA rich (800ish on EGT at normal driving).

Is this thing supposed to operate normally after completeing the initial setup or does it have to be dyno'd the first time and have it leaned out on partial throttle? I guess I'm confused on what to check next.

Can anyone help? Right now I have the MAF circuit connected directly (bypassing the AFC) so I'm at least driveable. Can anyone post their N/A correction settings?

 

It should be just fine with the safc connected. Did you do an intial setup? Go to settings, set the safc to 6 cyclinder/arrow pointing up & to the right. Also make sure its 4in and 4out. try that out and see how it goes.

Also when everything is running correctly, see what type of MAF % max your are running, just out of curiosity.

 

It's all working now. The installation was performed while following the wrong set of instructions. I'll look for that MAF % for ya tomrrow.

 

I don't use the o2 sensor wire and did not think I needed to. Any info contrary to that.

 

What exactly does that setting determine? I just hooked mine up tonite and left it at 6in 6out.
Haven't made any adjustment to the settings yet, dyno tuning next week.

 

4 in and 4 out is the sensor type that is stated to use in the manual for the 4th Gen's. HW-4 is exactly what it says..meaning... Hotwire 4. You have to have it set that way for it to work right. I believe the manual says if you don't set it right you can do severe damage to your engine. *shrug* I am a new SAFCII owner but I've been chasing out bugs for the last 3 days. Hope this helps

 

You mean the SAFC instructions say 4 or a 4th gen FSM says 4? My VAFC says 6 in the setup instructions. I thought it might be relating to the # of sensors it's monitoring/intercepting?

 

SAFC instructions say HW-4 for A32 Cefiro (Maxima). I don't know if the VAFC is any different.

 

Well after further research 6in 6out would be the extra 2 for vtec which I don't have so I assume I should set mine at 4in 4out also? Until I run the one vtec wire to my VIAS then it will be 5in 5out, or 4in 5out?
The VAFC unit doesn't have the etc option of selecting hotwire, flap, karmann or pressure, so I guess it figures it's for hondas only which are hotwire.
Can anyone confirm my assumptions?

 

I wish I had some answeres for ya. Hopefully someone will chime in here for ya.