i just installed my safc neo last night and im not getting a throttle signal or a tach signal. i double checked all my wiring and it seams to be correct what could be causing these problems?
Dreamrt, I don't believe there's a fuse inside the safc...unfortunately I believe you may have to replace the unit altogether in order to cure that problem.
Matt4082, it may be due to having a faulty tach driver or the wrong one on the car. I want to say the correct tach driver is #8913 if I remember correctly from MSD. Make sure that's the one you're using. Also, which way do you have it hooked up? Are you running it off the tps or the map signal? Map is better to use rather than tps because you can have different loads at the same rpm point depending on how much boost you have at that given point. Example: You can be in part throttle and make 10psi at only 20% throttle, or you can have 10Hg vacuum at 20% throttle, but the safc does not know which one you have. When you tune with map, it'll make it's changes based on boost which means it'll be more responsive to those part throttle situations and no matter what throttle percentage you're at it'll always know how much boost you have and correct for it.
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I typically have mine set to low 30% and high 70-80%. I'm always changing it but that seems to be what works best for me as well as several others that I have tuned.
I had a quick question if anyone can help me. I was running a little on the lean side so I tried to adjust it, and couldn't seem to get it running right, I had a friend of mine take a look at it and he couldn't get it to go right either, we set the controller to zero to make sure it wasn't a fuel delivery problem and ran it in third at 3000 rpm's and floored it and it flooded right away, could my msd tach be goin bad? It's almost like the fuel controller isn't reading that im goin full boost. Kinda new to the whole car scene so any help would be very good. Thx
I had a quick question if anyone can help me. I was running a little on the lean side so I tried to adjust it, and couldn't seem to get it running right, I had a friend of mine take a look at it and he couldn't get it to go right either, we set the controller to zero to make sure it wasn't a fuel delivery problem and ran it in third at 3000 rpm's and floored it and it flooded right away, could my msd tach be goin bad? It's almost like the fuel controller isn't reading that im goin full boost. Kinda new to the whole car scene so any help would be very good. Thx
I wouldn't go as far as to say the tach adapter is going bad...as long as it's reading the correct rpms on the screen then it works. It sounds like you may have your safc hooked up to your TPS (throttle position sensor) instead of your map sensor. The map sensor is the one that goes into your intake manifold, fyi. If you set the controller to zero and it flooded, then that's normal. You need to start taking away fuel until you get your desired air/fuel ratio. It's possible to add fuel with the safc's but to be honest there's no point and 90% of the time you'll end up throwing a CEL if you don't have the proper calculations and whatnot. Just keep pulling fuel and see if you get any changes.
i tried searching and came up empty..im trying to tune my car its stock turbo...how do you guys tune for spool up what afr are you looking for
On the stocker it's almost pointless to try and get a quicker spool by leaning the car out because the stock turbo spools so quickly anyways. Nevertheless, I shoot for basically as lean as I can get it (12-13afrs) while it's building boost, up to roughly 10psi give or take. After that I start feeding it more fuel to get back into the mid 11s throughout the rest of the rpm range.
But when I open the throttle and the revs climb, the safc reads all over the place, sometimes 0, sometimes a few thousand rpm's off.
My tach signal is good all the way to the tach adapter. I checked the voltage and I checked what the PCM is reading with an OBD tool and the rpm's are perfect with the obd. I also checked all grounding wires.
hey guys i have a quick question.
I hooked up my s-afc neo today (followed the how-to) and the rpm's are dead on but here is the question. The throttle % is at like 40-50% when the ignition is on (car is off). If I step on the gas pedal with the engine off the % doesn't move it just stays at 40-50%. I think it reads right when driving the car. Just wanted to know if it is normal for it to read that % with the car off. BTW, it reads 0% at idle.
Edit: I have it hooked up the map, not the tps. I think that is why the throttle % is off?
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Last edited by Ralphyc517 : 05-20-2008 at 07:15 PM.
hey guys i have a quick question.
I hooked up my s-afc neo today (followed the how-to) and the rpm's are dead on but here is the question. The throttle % is at like 40-50% when the ignition is on (car is off). If I step on the gas pedal with the engine off the % doesn't move it just stays at 40-50%. I think it reads right when driving the car. Just wanted to know if it is normal for it to read that % with the car off. BTW, it reads 0% at idle.
Edit: I have it hooked up the map, not the tps. I think that is why the throttle % is off?
one of the cars i wired up does the same thing but it doesnt matter, as long as it reads the correct throttle % when the car is running...
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