Learn about COBB's SWAS-Disable Features (on 2010 Test-Mule)

Need any gen 1 input/data? I don't have mine unplugged or disabled in the tune. Just hold the dsc button upon start up so that both dsc off and TCS lights stay on once the car is running. Never experienced any swas related fuel enrichment/boost drop-off. Also have a video of me doing autox on quite possibly the worst autox course ever on a pte 5858. Only thing I experienced is loss of power steering due to overworking the power steering pump
 
Sho said:
Need any gen 1 input/data? I don't have mine unplugged or disabled in the tune. Just hold the dsc button upon start up so that both dsc off and TCS lights stay on once the car is running. Never experienced any swas related fuel enrichment/boost drop-off. Also have a video of me doing autox on quite possibly the worst autox course ever on a pte 5858. Only thing I experienced is loss of power steering due to overworking the power steering pump
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Sure. It won't help me, personally, but it'll help the community. I'd be interested to know if there's as much SWAS variety across the Genwon years as there appears to be with Genpus. Have any logs to confirm no AFR enrichment, etc?
 
I turn SWAS off on track days (and usually for daily driving) by holding the DSC button. If I don't, it interferes quite a bit... on track days I notice it more so in the higher gears(3rd-5th).

I recall doing testing with the beta ATR features when they were first released a couple years ago. I found that the AFRs still went crazy rich, so I switched back to my pre-beta map and started holding the button again.
 
So I have a question about this, I'm running a stratified tune with the SWAS turned off option they offer, is SWAS totally disabled in my case? I don't feel it kick in on slow sweepers like on/off ramps but I also feather the throttle when I feel wheel spin too, but it will certainly light the inside tire if I stay in it.
 
Used to be you cannot fully disable everything SWAS does with ATR. This may have changed. I still had 2 of 3 forms of SWAS interference with it disabled in ATR, that's why I run fully unplugged.
 
Has anyone ever tried sourcing a SWAS sensor / supporting parts to setup a parallel system to fool the computer into thinking the steering wheel is centered all the time?

Got to be a way to make a fooler for it.
 
mattyhawk said:
Has anyone ever tried sourcing a SWAS sensor / supporting parts to setup a parallel system to fool the computer into thinking the steering wheel is centered all the time?

Got to be a way to make a fooler for it.
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Such a solution would likely involve a resistor and some creative wiring/tapping into the stock harness. Many people run a switch for the SWAS and just flip it when they want it off. Many others do what I did - unplug. I don't even really notice the warning lights anymore. The final (and best, IMHO) is to go Versatune. Their SWAS disabling fully addresses all of the things SWAS does (as opposed to COBB's 1 of 3 factor solution), and gives the added benefit of no warning lights.
 
Redline said:
Such a solution would likely involve a resistor and some creative wiring/tapping into the stock harness. Many people run a switch for the SWAS and just flip it when they want it off. Many others do what I did - unplug. I don't even really notice the warning lights anymore. The final (and best, IMHO) is to go Versatune. Their SWAS disabling fully addresses all of the things SWAS does (as opposed to COBB's 1 of 3 factor solution), and gives the added benefit of no warning lights.
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I unplug my gen1 too, but this subject comes up one a year for the last 6 years since I did mine. If you don't have versatuner, then your options are:
1. Unplug. No nannies, BUT Gen 1 looses rear ABS and Gen 2 looses full use of PS.
2. Fool it. I haven't seen it done, but I'm sure its not hard.

The sensor is ~ $80 new from mazda, P/N #BP4L-66-1S1. Used is less. It is flat and is about 6" in diameter. #10 on the attached picture. Just lock the inner race from moving, and no more SWAS (in theory). Don't know if other parts of the system will throw a soft code on Gen2. I doubt Gen1 will, simplier design.
 

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mattyhawk said:
I unplug my gen1 too, but this subject comes up one a year for the last 6 years since I did mine. If you don't have versatuner, then your options are:
1. Unplug. No nannies, BUT Gen 1 looses rear ABS and Gen 2 looses full use of PS.
2. Fool it. I haven't seen it done, but I'm sure its not hard.

The sensor is ~ $80 new from mazda, P/N #BP4L-66-1S1. Used is less. It is flat and is about 6" in diameter. #10 on the attached picture. Just lock the inner race from moving, and no more SWAS (in theory). Don't know if other parts of the system will throw a soft code on Gen2. I doubt Gen1 will, simplier design.
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Just partial clarification: my Gen 2 still has power steering in 99+% of scenarios. The issues you'll encounter are if you try to turn the wheel very quickly in parking lot-type situations. I've not once hit a no-power-steering "wall" while driving around town, and this has been over years.

The ATR solution for Gen 2s sucks, and I still had a TON of interference that was very noticeable (and "feelable") when driving. Unplugged or nothing for me. It's a world of difference in an extremely positive way.
 
Again, issues. Might be infrequent for you, but you are not the only data point I'm considering here. But yes, disconnect is cheapest if that works for the person.
 
mattyhawk said:
Again, issues. Might be infrequent for you, but you are not the only data point I'm considering here. But yes, disconnect is cheapest if that works for the person.
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Technically, yes. But I can count on literally one hand the times I encounter this "issue" in a year, and ALWAYS only in parking lots. In practice, it's effectively a non-issue.
 
SharksInSpace said:
But that doesn't refute his point that it may be a bigger problem for other people. :p
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Perhaps, but highly unlikely. SWAS issues are known to be much more invasive in the early Genpu models, like my 2010. A close buddy of mine who I tuned and drove his car on more than one occasion had a 2012, and the issues were faaaaaar less pronounced. Transition years of any car are usually "special." The Speed 3 is no exception.
 
Welp, boys, I guess we have our consensus. It's a minimal issue on two genpus, so let's don't have anyone bother trying to find a workaround for it; ingenuity be damned.
 
Adamizme said:
I turn SWAS off on track days (and usually for daily driving) by holding the DSC button. If I don't, it interferes quite a bit... on track days I notice it more so in the higher gears(3rd-5th).
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I thought that didnt fully disable SWAS? Am I missing something?
 
Yep, '13s have that nice feature.
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SharksInSpace said:
Welp, boys, I guess we have our consensus. It's a minimal issue on two genpus, so let's don't have anyone bother trying to find a workaround for it; ingenuity be damned.
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It's not any issue for me at all. Running unplugged, I have zero SWAS interference. The very simple, easy work-arounds (if you have no '13), are switch installation and unplugging, like I did. Finally, there's a solution that requires no modding at all and also fully address it and is well-known: Versatuner. Did you miss that part? :p
 
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VT is, what, $550? Versus the possibility of using a sensor that costs $80 or less and some wiring to trick the system?

I just don't see the harm in someone pursuing a workaround that would be a full-time "set it and forget it" option, i.e. no switch, without disabling rear abs in juans or messing with power steering in pus like unplugging it does. If you don't want it, fine, don't use it, but why try to convince matty against its potential usefulness?
 
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