Hi guys!
Just got my car tune with S-AFC. I've been not so lucky to have an engine that puts out less than average number when stock. With TD Borla exhaust and CAI I dynoed at 227 WHP and 217 WTQ. After that I got headers, hi-flow cats, pulley, and Crawford plenum. I dynoed the before and after of the Plenum and had no gain whatsoever, but I still leave it on. This was almost 2 years ago. Today decided to tune the S-AFC and there is the graph. My car run pretty rich before the tune.
Ah! I notice the guy uses my lowest number of before tune. I did 3 pulls before the tune and the highest numer is 243 WHP ( didn't remember the TQ #) So the tune with S-AFC gives me about 10 WHP but I gained alots with WTQ.

 

Nice, any worries of the computer conter acting the SFAC?

 

Yes I do! I've heard of it before. I jsut have to wait and see what's going to happened? If it does then I will do the TS flash.

 

that gives me some hope; now u'll have to check it in a month or 2 to see what the ecu does.

 

I have the SAFC II tuned for at least an year now...no problem. At the last SoCal Dyno day, the dyno dude was amazed to see how flat my A/F line is. Nice mod to have if you know how to tune it youself. A wideband is also a must.

 

That's good to hear! But to make sure I will re-dyno it next month. I have to drilled a 02 bung after the cat to plug in the wideband. A/F is much better now.

 

Anyone installed one themselves? How involved is it?

 

its not that hard mainly tapping into wires in the ecu harnes with vampire taps or crimps. then you gotta cut the air fuel signal to divert it to the safc.

 

other than those cheesy LED A/F gauges by autometer, is there such a guages that taps into smoewhere on the exhaust that will read out real a/f ratios and display it on an LCD gauge?

 

^ yes there are many... AEM,zeitronix,PLX,inovate,dynojet,FJO ect...

btw zphatz is this on an 04 or 03?

 

Man im suprised not many people have safcII. I know that I would consider it way before a TS flash unless all you want is the raised rev limiter. Actually I would go for an smt7 first because it can control timing too. Just odd because I figured more people would be using them. Just seems like everyone is oblivious to what it is or what it does.

 

I'm getting the bung for my AEM UEGO welded in tomorrow. I think that the SAFC 2 would work perfectly with it.

Anyone got the wire color chart for the ecu?

 

Don't have the color wire chart of the ECU, but have this
For the wiring:
the ingition signal from the Apexi unit (RPM signal, Green wire) connects to terminal #62.

the Knck sensor from the Apexi unit (purple wire) connects to terminal #15.

the power supply for the Apexi unit (red wire) connects to terminal #119.

Both ground wires from the Apexi unit (black and brown wire) connects to terminal # 116. Make sure that you tap both these wires at least 2cm apart from each other. Make sure that the black wire is on the Apexi unit side, and the brown wire on the ECU side, and again that they are not on top of each other, but 2cm apart.

the throttle position sensor wire from the Apexi unit (gray wire) connects to terminal #50.

and the last one is the mass air flow sensor wire from the Apexi unit (white wire and yellow wire) are connected to terminal #51. Yellow wire = air flow signal output; and yellow wire = air flow signal input.

 

z phat z... you never answered is ur car an 04?

 

Oh! Sorry, didn't see that question. My car is an 03.

 

damn! i cant seem to find anyone w/ an 04 ecu