S-AFCII or AFC neo?

[krook]

i was gonna get an AFC neo as a replacement to my broken S-AFCII, but i noticed that the AFC neo doesn't have a "knock signal correction". i'm only running a 2.9 pulley with URD injectors and it's running rich.

[Dawgz]

i was gonna get an AFC neo as a replacement to my broken S-AFCII, but i noticed that the AFC neo doesn't have a "knock signal correction". i'm only running a 2.9 pulley with URD injectors and it's running rich.

How did ur safcII break?


This question can be easily answered by ur tuner, see what he/she is most familiar with, what they have worked on more...Since the neo is kind of brand new, not all tuners have had experience with it...but thats just me.

[krook]

How did ur safcII break?


This question can be easily answered by ur tuner, see what he/she is most familiar with, what they have worked on more...Since the neo is kind of brand new, not all tuners have had experience with it...but thats just me.

well, i haven't really messed with it in a while but when i DID have my S-AFCII hooked up it wouldn't let my car start. it would crank but not turn over, or it would turn over, but shut down immediately. for some reason, with the unit wired inline with the air sensor wire it f*cked it up.

i think Josh had the same problem and got the neo as a replacement, which is what i was thinkin' of doing too, but then noticed the option to correct knock was missing on the neo.

[Dawgz]

How did ur safcII break?


This question can be easily answered by ur tuner, see what he/she is most familiar with, what they have worked on more...Since the neo is kind of brand new, not all tuners have had experience with it...but thats just me.

well, i haven't really messed with it in a while but when i DID have my S-AFCII hooked up it wouldn't let my car start. it would crank but not turn over, or it would turn over, but shut down immediately. for some reason, with the unit wired inline with the air sensor wire it f*cked it up.

i think Josh had the same problem and got the neo as a replacement, which is what i was thinkin' of doing too, but then noticed the option to correct knock was missing on the neo.

what do u mean by correct knock?

and, have u tried to reset the safcII?

[Akfahad]

How did ur safcII break?


This question can be easily answered by ur tuner, see what he/she is most familiar with, what they have worked on more...Since the neo is kind of brand new, not all tuners have had experience with it...but thats just me.

well, i haven't really messed with it in a while but when i DID have my S-AFCII hooked up it wouldn't let my car start. it would crank but not turn over, or it would turn over, but shut down immediately. for some reason, with the unit wired inline with the air sensor wire it f*cked it up.

i think Josh had the same problem and got the neo as a replacement, which is what i was thinkin' of doing too, but then noticed the option to correct knock was missing on the neo.

That's right bro....same damn thing happened to me. Reseting doesn't do anything, but you can still try it anyway's....might as well.

[Akfahad]

oh, and to just put a bug in your ear as your deciding which one to go with...when my SAFCII was working, I noticed the knock was pretty high, even at idle when the weather was really hot and muggy. Once you add some acceleration and get some air flowing, the ping will go down slightly and I use to monitor it at WOT during the same heat/muggy weather and it sometimes would spike to over 100. During the winter months, same location, but never any snow, knock ping was near 0 and only spiked to around 15-20 during cold weather. So, I wouldn't say it's absolutely necessary versus a nice-to-have, I would like to have it, but if you can tell it's really damn hot/muggy outside, then it really shouldn't be that big of a problem. Just wait 'till it cools down at night or wait 'till winter to open it up a lot....LOL ...but I guess that would depend on where you live.

In terms of how to tune with it...it's very similar to the SAFCII, the only difference is is that the intervals between RPMs are closer together, and of course the layout is different. Just FYI

[krook]

what do u mean by correct knock?
and, have u tried to reset the safcII?

the S-AFCII has an option to monitor the knock sensor, AND, if i'm reading the manuals correctly, to correct it at certain RPM's. the neo doesn't have that option.

[krook]

oh, and to just put a bug in your ear as your deciding which one to go with...when my SAFCII was working, I noticed the knock was pretty high, even at idle when the weather was really hot and muggy. Once you add some acceleration and get some air flowing, the ping will go down slightly and I use to monitor it at WOT during the same heat/muggy weather and it sometimes would spike to over 100. During the winter months, same location, but never any snow, knock ping was near 0 and only spiked to around 15-20 during cold weather. So, I wouldn't say it's absolutely necessary versus a nice-to-have, I would like to have it, but if you can tell it's really damn hot/muggy outside, then it really shouldn't be that big of a problem. Just wait 'till it cools down at night or wait 'till winter to open it up a lot....LOL ...but I guess that would depend on where you live.

so you've never had a problem w/the knock sensor then?
damn man, i think you and me are the only ones having that same problem with the S-AFCII's??!!

but before i toss my old one, i AM gonna try and reset it like Dawgz mentioned.

[Dawgz]

what do u mean by correct knock?
and, have u tried to reset the safcII?

the S-AFCII has an option to monitor the knock sensor, AND, if i'm reading the manuals correctly, to correct it at certain RPM's. the neo doesn't have that option.

how can u correct knock? all that function does is "read" from the knock sensors.

[Akfahad]

oh, and to just put a bug in your ear as your deciding which one to go with...when my SAFCII was working, I noticed the knock was pretty high, even at idle when the weather was really hot and muggy. Once you add some acceleration and get some air flowing, the ping will go down slightly and I use to monitor it at WOT during the same heat/muggy weather and it sometimes would spike to over 100. During the winter months, same location, but never any snow, knock ping was near 0 and only spiked to around 15-20 during cold weather. So, I wouldn't say it's absolutely necessary versus a nice-to-have, I would like to have it, but if you can tell it's really damn hot/muggy outside, then it really shouldn't be that big of a problem. Just wait 'till it cools down at night or wait 'till winter to open it up a lot....LOL ...but I guess that would depend on where you live.

so you've never had a problem w/the knock sensor then?
damn man, i think you and me are the only ones having that same problem with the S-AFCII's??!!

but before i toss my old one, i AM gonna try and reset it like Dawgz mentioned.

well, I did blow one of my knock sensors when I was at the track and didn't let it rest long enough between runs...did the old re-wire trick and so far, no other problems. I hope the reset does work out bro...this little problem sure is annoying.

I don't think the SAFCII will allow you to adjust the knock, only thing I would think that would help would be to know at what RPM range the knock pings and then adjust for more fuel at that RPM. Although, I never really looked into it to see if it had that function.

[CamryOnBronze]

hmm, I have never seen the knock on my safc2 read more than zero... but I will say that the neo and the safc2 tuning wise are essentially the same from what I have heard... but I dont have experience with both like josh does.

[akora12]

^^^Mine reads zero unless I'm at WOT or the engine has been running for a while. Even though, it's only around 6-7 at idle.

[CamryOnBronze]

every time i have done the recall to see if it hits any knock after WOT runs or anything, its always zero... never seen it read anything else. weird!

[Akfahad]

^^^Mine reads zero unless I'm at WOT or the engine has been running for a while. Even though, it's only around 6-7 at idle.

that's about what mine read during colder months...it changed significantly when the warmer and more muggy weather hit though. I'm curious to know if those readings you have are as of now, during the summer? or if that was when the weather was cooler?

[Dawgz]

u guys are seeing zero knock cause ur in the display mode(s).

If u wanna see realtime knock values, go into sensor "check" mode.