The only reason I'm running both is to cover the volume of fluid left in the line between the nozzle and my solenoid that could induced into the engine. It also ensures this run of line remains primed. But we're talking 10 inches of line so its not much liquid. It's also my last line of defense for the whole system if the solenoid were to fail open (which again would be a very very low risk). It's really overkill but I'm risk adverse.

Snow used to provide a standard check valve. They changed this recently. They're now providing new nozzle holders that include a check valve in them. Pretty slick IMO.

I like your idea of eliminating the CV & solenoid just to rule them out. But my $10 says there's something up with that flow gauge especially after reading Dale's issues with his flow gauges. My sensor already got stuck once...

This check valve
Snow Performance : 82204 Nozzle Holder-check valve

Looks alot like this

Metal Nozzle Holder Fitting

I agree with your assessment, but you know that any CSR will try to troubleshoot/blame other things first.


Another thought. The coolingmist CMGS v1.07 has a "delay" for their flow sensor that offsets the displayed flow based on the distance of the flow sensor from the nozzle. Does the AEM have a delay? It might not be the reason for the reduced flow, but might help...something...

The solenoid failing is very rare, and could only be detected by the flow sensor or wideband, and I don't even know if you would know about it on the flow sensor unless you saw flow when the kit was off.

You're absolutely right. DO and Snow Housings look identical but the Snow holder has additional internals where the DO is simply empty on the inside. When initially looking at nozzle holders I came to the same conclusion you did, figured Snow's description was screwed up and bought the Devil's Own holder because it looked similar to Snow's but cost less. I also had a separate (by used) check valve I could install. I tested my check valve; it was stuck closed so that went in the trash. I called Snow to confirm their holder did have an internal CV, the rep confirmed it did, and I bought it. When I got it in, a visual inspection confirmed the internal CV.

Highly recommend the Snow Performance holder over the DO if you want to run a CV.

The CMGS does not measure flow directly. It measures the current drawn by the pump and infers if there is a problem. This is why I went with this system. It is actually an idea I had about a failsafe and was testing in on the side when I realized someone already made one. So I bought the kit.

I edited the post you quoted for the version I am using. The older CMGS, with 1.07 firmware uses a flow meter instead of their FSB. I went used 1.07 instead of the new 1.10 because the older firmware could use the "failsafe" output to control a second stage independently.

MazdaspeedKills, If I hadn't just ordered 2 DO check valves I would probably pick one up. $27 shipped on ebay. Darn it.

Just had another failure picked up by the CMGS. This was a leak at the check valve. Not a fully blown hose, just a leak, and the Coolingmist failsafe picked it up. So far no false positives.

Here's an update on my failsafe saga-

SNOW failsafe. It appears as though the SNOW failsafe is working better with the replacement harness they sent me. It does occasionally not show a reading and trigger a false positive. I suspect this may be used to the pressure switch trigger I am using though; there might be some hysteresis in the pressure switch trigger pressure and sometimes it doesn't trigger the SNOW. When the SNOW reads now, it doesn't bounce around and it holds a steady 500ml/min reading under full spray. I am thinking about seeing if I can get a +12V trigger using one of the DO controller LEDs (i.e. flow LED). Maybe I'll get lucky and they don't do any DC-DC stepdown for their LEDs. I still need to build confidence in this system, but it seems to be ok for now.

I did get the AEM units back. I decided to try the failsafe again and see how it does. On the plus side, the first AEM unit/sensor I tried triggers flow every single time. Every single time. On the downside, it doesn't measure flow right. I saw it briefly measure correct flow last night for about 30 seconds (fluid movement to peak ~500cc/min), otherwise it jumps around between 700-750ml/min very abruptly. So, on one side, I can use it for an indicator and failsafe as it is, but it doesn't meter for shit so I really couldn't set the upper/lower failsafe limits very well. I might swap in the other spare AEM parts I have (flow sensor and/or gauge) and try to isolate where the shitty metering is coming from.

I guess it's a step in the right direction. The SNOW appears to be working save some intermittent issue with the trigger and the AEM is detecting flow although the metering is shit.

Dale, just for clarification, did the Snow and AEM sensors get installed in the same location? Are either running a filter before the flow sensor?

Ok, big update here.

I decided to take a flow sensor and AEM failsafe and test them on a bench to get to the bottom of this. First, I plotted the curve of the FT-210 flow gauge (which is linear). This is pulse rate (hz) vs. flow from Gem's website.

I used an o-scope to measure the pulse rate and plotted on the flow sensor's curve. You can see the red line plotted on the blue line. The reported flow from the sensor matches the failsafe gauge reading. I repeated this with two flow sensors and results were consistent.

http://images51.fotki.com/v278/photo...210flow-vi.jpg

http://images51.fotki.com/v278/photo...5/500ccmin.jpg

http://images51.fotki.com/v278/photo...5/800ccmin.jpg

Because the results were consistent across both flow sensors and the flow gauge matched the sensor readings, I think I feel better about the AEM metering flow right. So, why then am I seeing ~700cc/min when the D07 is rated to ~440cc/min? It's elementary as I found out (and feel stupid about).

Devil's Own (SNOW too) rate their nozzles at somewhere between 60-100psi (I read snow is 60psi and Devil's Own is 100psi). All of their pumps are factory set at 200psi. What these means is, the nozzles flow a significant amount more at 200psi than they do at 100psi. So, when you read that a D07 flows 7 gallons/hour (441cc/min), that's at ~100psi. In reality, the D07 flows much more at 200psi pump pressure (650-700cc/min).

This cool guy on a vw forum flow checked a bunch of nozzles at various pump pressures. Here you can see he measured the D07 at ~655cc/min @ 200psi.

Has anyone ever done a WM nozzle flow benchmark? - Page 4 - VW GTI MKVI Forum / VW Golf R Forum / VW Golf MKVI Forum / VW GTI Forum - Golfmk6.com

https://lh6.googleusercontent.com/-7...%2520test2.PNG

What does this mean? I think the repaired AEM failsafe has been metering right all along.

Believe it or not, the repaired AEM setup has now been running consistently for about a week and hasn't missed a single trigger or had a weird flow event. What I suspected was a flow metering issue was in fact shitty marketing on the part of the nozzle manufacturer.

I did find a slight issue with the AEM failsafe in its design. The spec for sink current of the open collector is 20mA max. I measured the sink current of the collector and found it to be around 30mA with a 10kohm resistor AEM used. This is out of spec. I put a 13kohm resistor in place of the 10kohm AEM used and the sink current is in spec now (20mA). The gauge doesn't seem as jumpy now.

Hey, those are my nozzles. I only thought he had posted on the vortex. The DO numbers are for their new nozzles, not the older micro-droplet nozzles. The Aquamist nozzles were new to several years old.

I believe all manufacturers rate their nozzles at 100psi.
Also AFAIK most pumps have a settable internal pressure bypass and this sets the maximum pressure they run at.

Good work Dale!

How do you have all of these toys? I'm jealous.

I'm an engineer with a well supplied lab. :-)

Droppin' knowledge bombs like panties after prom. Good shit dale. Thanks for keeping us updated

Sent via Tapafail

All these engineers and their attention to details ... sheesh!

Look who finally got his shit together! After months, I was able to finally get the whole AEM setup going and actually build a failsafe flow curve! I am not going to hook up the failsafe just yet, but it's almost done!

Here's the flow plot after about 3 4th gear pulls. Not super tight, but a curve nevertheless. I clicked the automatic curve function to build the initial curve.

http://images16.fotki.com/v368/photo...thcurve-vi.png

aaaaand, the curve is officially built.

http://images58.fotki.com/v154/photo...hcurve3-vi.png

It's a big range for the error (50% of total flow). How does it end up reading a flow of 400cc and 800cc at the same Injection % (is that pump duty?). Does it start sampling the flow a little early perhaps when you first get into boost and the system hasn't built up pressure? Does increasing a delay (perhaps alarm delay) help tighten the curve at all?

So this trigger could also be used with a low level sensor on my washer tank right?

This is AEMs curve on their website. I don't think it is super tight. yes, that is pump duty cycle. The failsafe triggers on the controller pump signal line. I suspect the variation has to do with 2 things:

1. The pulsing behavior of the pump itself. If the pump was continuous flow, I am sure the curve would be much tighter as the sensor is spec'd to hold +/-3%.

2. It would definitely benefit from some averaging as well. I don't think the AEM does any averaging/exponential averaging, so it samples and reports, samples and reports, etc in whatever duration it's controller samples the incoming pulses from the flow sensor.

http://www.aemelectronics.com/sites/...catterplot.jpg

Guys I am really happy to report that the AEM failsafe has been working flawlessly now for a solid week. Everything is working well consistently and I am feeling confident in hooking the AEM up to the Guardian Angel. Finally!

For anyone going through this, don't hook up the failsafe to your GA until you have vetted the failsafe by itself. It's one thing to fight a failsafe, it's that much worse when it is constantly triggering the GA and popping the BPV. A lesson learned for me, hook up the failsafe, run it for a while, get confidence in it and then hook it to GA.

I still have yet to install my snow failsafe as I've had a little hiccup getting the flow gauge to me. The snow failsafe is a bit different as it apparently only trips if flow drops below X rate after Y seconds. So I'm assuming 1. No overflow protection and 2. No progressive mapping like the AEM, only max flow will be measured. I'm somewhat worried about 1, but with snows controller design their pump shouldn't magically come on by itself.

My real hangup is where to mount this thing. I have a solenoid right near my nozzle which is run into a DM throttle body plate, so I need to get the module between that solenoid and the nozzle incase the solenoid fails. I'm thinking I might have to fab up some kind of plate to fit on top of the cold pipe and mount the unit to that. I could secure it maybe utilizing the bolts on the t-clamps securing the cold pipe to the throttle body with an additional set of nuts on the t-bolts. Hmmm.

So as i read aem and snow failsafe seems to work fine with guardian angel. The snow just needs a relay work . But the pressure switch is it also needed to work with the snow failsafe or its only needed if the controller is from another company like DO? My meth kit is the snow performance stage 2.
Thanks

The GA V2 actually no longer needs a relay. It takes as an input a high signal as well as a low signal.

The snow and AEM failsafes are add-ons to any kit. So in other words you can add any of these systems to any meth kit.

I am sorry for my english i meant the snowperformance faisafe needs a relay to work with GA v2. I think we spoke via email last week and you have send me a diagram for that connection between snow failsafe and GA. This was for the GA v1? The connection between GA v2 and snow failsafe doesnt need a relay anymore?

I also asked about the pressure switch a member here used to connect his DO controller with the snow failsafe but as i understand that switch isnt needed with the snowperformance controller and the snow failsafe.
Again sorry for any missunderstanding .

Yes the relay is only needed in the GA V1. I thought you had a V1. The new V2 does not need a relay.

If you get the failsafe you won't need a pressure switch.

For a 2 month update, the AEM failsafe has been doing quite well. Last week it started triggering the failsafe due to overflow. I first started to think the sensor was failing but sure enough, one of the failsafe push connect adapters that threads onto the flow sensor was coming loose and it was leaking. I otherwise haven't seen a single false positive and by monitoring BATs, it appears to be working very well.

So, I am finally ready to mate the failsafe to my GA I think and let it start doing its thing.

Even though I keep an eye on gauges etc. it's so nice to have a failsafe that actually drops power you can trust.

I've had the failsafe trigger a few times and I'm happy I didn't have to be watching things to lift and the GA took care of it. It's hard to do when watching the road and driving the car ... so much so that I don't feel gauges are good enough to catch an emergency condition unless they have an alarm or failsafe of sorts. So if outfitting gauges or alarms for critical functions I will now opt for an alarm or some sort of trigger every time.

How's that cooling mist kit holding up?

So far still doing well.

For a 3 month update, my failsafe flow sensor died. Meth still continued to flow per monitoring BATs. I swapped flow sensor with spare and it worked, so definitely flow sensor issue.

Looks like AEM is good to go to send me a replacement. I can buy these from GEM sensors directly (part 212465), but for $120/ea, I makes sense to do it under warranty.

Otherwise, I still really like the system. It was reliable until it wasn't.

Glad I have two CMGS sensors that are also GEM. Couldn't find the part number when I went looking a few years ago though.

Just to contrast this with the Coolingmist CMGS system that monitors pump current. I've had about 4 false positives over the winter and they were all as the temperature transitioned from cold to warm and warm to cold (near freezing). I chose not to adjust sensitivity on the system and just reset it to relearn as the temperatures changed. Everything else is working as it should so far.

Ok, 6 month update, both of my replacement AEM failsafe flow sensors died. It's always the same. They work perfect for a few months, then get intermittent and then die. So, this is 4 sensors total that have crapped out. When they are new, you can blow in them or put water through them from a hose nozzle and hear the impellor spin. On all 4 bad units, you don't hear the impellor spin anymore. They end up siezing I guess.

I'll mail these back in I guess, but I 100% recommend that EVERYONE avoid any of the failsafes that use the GEMs flow sensor (AEM or SNOW). They just can't handle the job even though on paper they should clearly be able to. I have a suspicion that their little impellors don't like the continuous pulsing from the pumps, or it could be the methanol is wiping out the impellor bearings or something.

This is probably why Snow switched to a pump current monitoring failsafe type deal with their new controller.

I didn't know they switched to the same method Coolingmist is using. I still see the GEM sensor based flow meters on their site. Any further info on this new product?

Safe Injection Unit

I was referring to this little guy.

VC-50 Controller

Thanks for this. I like. Let the investigation begin.

If you stumble upon the whitepaper or instructions for that VC-50 please share.

Alright, emails away. I could not find instructions or anything so I emailed the sales department. Lets see what we get.

From the description it certainly looks like they are using a very similar strategy to what coolingmist has been using.

The CMGS continues to be reliable. The only times I have any issues is when we transition from summer to winter and vice versa. A big drop or increase in temperatures can falsely trigger the alarm since the resistance characteristics of the motor in the pump and some of the mechanical parts change with temperature. In this case just reset the system and it should be good to go. I've had a false alarm around 4-5 times since starting to run this daily in the beginning of the year.

Received an email back from Snow. Attached is the install instructions.

In typical Snow fashion, they appear to have sent you the wrong instructions.

Are they a pain to work with? I know one of our locals is waiting to have a controller warrantied. By the sounds of it, it's going to be a while just to hear back...

Yea so I think that was my fault. When I clicked the link you posted, it went to the Safe Injection Unit. I think. Maybe I'm crazy. So thats what I requested the install instructions for. I have a second email out for the white paper/install doc on the VC-50 Controller. Shit looks AWESOME

Got back to me quick this time. Sales guys are always on top of sh!t.

I second this at least for the AEM failsafe; can't weigh in on the Snow model. I installed and had two sensors go on me. AEM's failsafe is good in concept but very poor in execution. Look into other manufacturers. I'm in the process of ripping mine out now. Forget the failsafe feature I can't even get an accurate flow reading! I'm not willing to run my meth setup without a reliable setup. Pissed that I spent $250 on a piece of junk.

I'm gutting my WMI setup. I will say that the Devils Own DVC30 has never failed me in years of continuous operation and probably 40-50 gallons of meth/water through it. I do really, really hate the black box aspect of it though. When you're sitting 4,5,6+ degrees of advance over pump gas and you are in the heat of the moment racing or doing a canyon run, you can't sit there and babysit BATs and KR. This is why I initially went for the GA + AEM WMI failsafe in the first place. I love the idea of a failsafe to give some margin for error in the event I am not watching my AP at that exact moment a line pops off or the pump seizes.

After @Lex;'s experience and feedback, I decided to go with the Coolingmist CMGS controller and their failsafe box. It will be an easy swap for me since I already have 1) the controller wired to the pump, and 2) wiring/power running to the gauge pod for the POS AEM failsafe gauge. The failsafe line is even already hooked up to the GA. I'll use my pump, upgraded valve, wiring, meth tank, and just upgrade controller and failsafe. FYI, if you already have another kit installed, you can get the CMGS controller + failsafe for ~$399.

I don't have anything good to say about the AEM Failsafe kit. Can't put much stock in a failsafe that fails itself.

Could have installed the aem afr failsafe...wired it to a $2 relay and tied it to ebcs. Failsafe triggers....you only build spring pressure. Gauge is less than 300. Its also a wideband and boost gauge.

That's what I'm running. Tested and it works. Just FYI

I'm done with AEM plus the d07 with 50/50 doesn't hit afrs enough to show a shift anyways.

Their egt gauge has also been causing me problems over the years. Done with their stuff.

I ending up giving up on flow meters. There's a thread on here somewhere about hooking an aeroforce interceptor into the GA. I set it to fire off the GA if it detects more than 2.5* of KR.

Here is that thread for reference.

How-To: Install AeroForce Interceptor with Guardian Angel Trigger

I absolutely love my CoolingMist controller and failsafe. I found that the sensitivity settings were a bit too relaxed and it didn't pickup a few real issues but after some fine adjustment of the settings it's been flawless.

Didn't realize Thats all you were spraying. Carry on. :)

I was planning on doing the same thing with the Snow VC-50 VC-50 Controller. You now have me considering the CMGS controller. You got a rough timeframe that you hope to do this?

Should be in within 2-3 weeks

I was looking at the VC-50, but the CMGS and VC-50 roll in around the same price point, and the CMGS is proven with some clout, so that tipped it for me, plus that smart failsafe box kind of took it over the finish line.

Fuck, that's not a bad idea. That kind of extracts the failsafe to a level above just monitoring meth flow and works as an overall failsafe should other things get screwy.

EDIT: Ah, I see that you can only have the Aeroforce or the AP on the CANBUS at a time. That's kind of a bummer. I think if it was both simultaneously, that would be killer. That's tough when you want to log a run with AP but still need a failsafe trigger at the same time you are logging.

Just get a splitter? Wouldn't that work? You can run two aeroforce gauges using one. Probably would be some degradation in polling.

I think the dual aeroforce must present itself on the can as a single device.

El oh El, Coolingmist's instructions from the CMSG and failsafe are literally among the worst I have read. The wiring diagram looks like a 12 year old did it in Office 95, and it's way to overly complex explaining the parameters with typos galore.

Hey @Lex; one of the only things I am uncertain of, is their explanation of the failsafe wire from the CMSG (which will go to the Guardian Angel) and its parameter settings:

000 Normally Open (Default)
001 Normally Closed
002 Normally Open (closed when MIN set point reached) ** YOU MUST SET THIS IF YOU DON’T HAVE THE FSB
AND WANT TO USE A SOLENOID. THIS WILL GROUND THE SOLENOID AT MIN BOOST
003 Normally Open (closed when MAX set point reached)

I am guessing 'normally open' = signal level low (i.e. 0v) and when it triggers a failsafe then signal level goes high (i.e. +5v)? What a terrible explanation.

@Jonathanhair07;

Sent from my SM-N910T using Tapatalk

I have mine set to the following.

Parameter 1 is 4 for pump duty cycle

Parameter 2 is 0 for boost

Parameter 3 is 0 for duty cycle

Parameter 4 is 2 for failsafe auto

Parameter 5 is 0 for normally open

Parameter 9 is 20 for low 0-59% duty cycle sensitivity

Parameter 10 is 3 for more sensitivity for 60-100% duty cycle

I have the yellow wire going into a relay and output set to the GA

Wait, can't the yellow wire drive the Guardian Angel directly? Why did you need a relay?

From @Lex;
Attachment 211239
Attachment 211240

Got it thanks. Which relay?

The V1 GA was triggered only by a positive voltage signal (going above 3V). On the V2 GA the GA is triggered by a signal going both high OR being pulled to ground. We did this to make it more universally compatible.

@Lex; is there a relay you recommend for v1? (Unless you want to send me v2) :)

Any automotive relay will do. No current rating is needed, you are just looking for a voltage at the GA trigger.

This is what I plan to use.
Water Methanol, Low Flow Safety Switch

Probably not a coincidence that that unit looks EXACTLY like the snow safe injection unit. Same unit.

@Lex; can you please specifically map these drawings to the pins on a relay so I don't make a mistake here? i.e. input from CMGS to relay pin 85, output to GA pin 87, +12v to pins 86/30? Please confirm wires to/from relay and which relay pins please.

http://www.mazdaspeedforums.org/foru...772.394002.jpg

You have it 100% correct
I always use this for reference
Attachment 212117

Got it, ok, so on a relay, to turn a negative trigger to a positive 12v, the trigger output (30) and 12V input (87) are reversible since the relay is closing and connecting the 12v between the pins regardless of which is 30 and which is 87. Is that correct? That might alleviate some of my confusion since I've seen them wired both ways in online examples.

Does that also mean that the control coil pins (85, 86) are also reversible or does the voltage only intended to go 1 way (i.e. polarized)? Basically the control coil will work as long as voltage is applied to the coil, and the switch will close connecting 30 and 87.

A relay is a current triggered switch. So the coil end you can run a small amount of current to trigger the actual switch. Since the V1 GA needs a high signal to be tripped, on the switch side of the relay you connect 12V on one end and the GA on another. On the coil side you connect 12V on one end and the device that pulls to ground when the WMI fault is detected. So when the WMI failsafe triggers to ground, it closes the switch the GA is sitting on and the GA trigger sees 12V. This trips the GA.

one question about the snow performance failsafe. It triggers but logs give me rich afr as it should since i need to maf cal and low BATs. I used different sets and it still triggers . Now it is set with the lowest flow setting and the highest latency. This means that the flow sensor is dead?

Have you contacted snow to ask? They know their system best.

Currently trying to install a GA v2 with a SP meth kit and SP failsafe. Sooooo confused on the install does the minimum flow rate need to be bumped up depending on the nozzle size? Currently have issues with the GA not responding so I suppose I have that to address first.

As per Snow.

The left dial on the SafeInjection® unit controls the lowest allowed flow. It
is adjustable from 100ML/MN to 600ML/MN. The dial is set to
100ML/MN when it is turned fully counter-clockwise. It is set to
600ML/MN when it is turned fully clockwise. Be very gentle when
adjusting the dials, as they are very precise and do not require excessive
force. Many systems function below 600ML/MN. A 175 nozzle will flow
250 ML/MN at nominal pump pressure for example.

Adjustable Delay
The SafeInjection® unit has a user adjustable delay that can be used to
control the speed at which the trigger signal is activated. The delay is
adjustable from 0.1 seconds (full counter clockwise) to 1.5 seconds (full
clockwise). This delay prevents a 12V signal from being sent during a slow
ramp up of injection or when injection is gradually being reduced.

You need to adjust the minimum allowed flow based on the flow of your nozzle. Additionally this failsafe is really only for MAX flow numbers as it does not and cannot take into account variable pump voltage / nozzle flow. Thus the delay adjustment knob.

What psi are you spraying 100%? What psi is your starting point?

Ohhh that does clear up things a little. I'm using their red nozzle with is 625? Flow rate I think. So I need to bump up the dial to way up. I left it as it came from factory. So it's at no delay and about minimum rate. My start psi is roughly 9.5-10 and my max flow is by 20 psi I believe. I have to double check that. So I suppose my controller was just set too low. But I still have to figure out why my GA was tripping out easily no matter where my dial was set.

If there is no delay set then you're at 0.1 seconds for the reading.. that's too short of a time span for any methanol to start flowing. The safeinjection unit has a physical flow sensor (GEM flow sensor). So the safeinjection unit is going to activate when your pump activates, wait for the specified delay time, query the flow sensor for the flow rate, and then compare the actual flow rate with the rate specified on the safeinjection module.

I'd allow for some variance. Maybe set the delay to max and the flow to the middle. Snow's controller knobs suck and aren't accurate at all regardless of what their documentation says.

Well damn I feel like I did the install correctly. That's a major relief. I'll try that. After that's sorted I think I'll try the relay method to be the trigger. I really appreciate your help I tried the Facebook forums and I got zero help. It makes sense when you put it that way. Because as soon as I say my green light for meth kick on. The yellow light failsafe came on and shut it down.


Sent from my big fat booty

Yes i did contact them but didnt get any reply yet

On my part i used the 625 nozzle. I have to say that the system worked at first but recently this problem started for now reason. I turned the flow setting to the lowest point counter clockwise and the delay at the highest clockwise. I have to check for any leaks but at the log it seems that meth sprays so maybe the safe injection flow sensor is failing?

Do you have the safeinjection gauge as well? Does it read when the meth is flowing?

Well since I had the delay set as low as possible and the dial to low meth would not have a chance to be read. So I'll have to answer that soon.


Sent from my big fat booty

No i dont have the safeinjection gauge unfortunately. I only guess that it works from the logs

Just got done reading through this thread again. Such an invaluable resource. Thanks guys.

@dale_gribble; How is that CMGS setup playing with the Gurdian Angel? Im in the market for the GA and the CMGS that youre running. The stage 3 Autolearn kit including the Fail Safe Box. Thoughts/suggestions?

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Hey @ItsNox;

The setup is playing well together. Remember that you need to run a relay from the CMGS failsafe box output to the input of the GA. I think it's documented here. However, I think the new GA might be able to get a trigger from ground or + signal now. @Lex;?

I have found that the autolearn part of that failsafe box doesn't autolearn well. There's 2 ways to calibrate the failsafe box pump current monitoring: 1) Let the FSB autolearn or 2) Set the system to manual learn and run the controller/pump through 0-100% duty cycle with the nozzle out of the car and spraying into a bucket or something. The CMGS has a test mode (Configuration 6) that makes this very easy.

In autolearn (calibration mode 1), my car never autolearned. After weeks and weeks, it wouldn't calibrate. I emailed coolingmist owner and he kind of in a roundabout way said that the autolearn isn't reliable and to do calibration mode 2.

In calibration mode 2, where it's manual and you cycle the pump through 0-100%, it learns all of the stages within a matter of a minute. So, it calibrates quick and it's good to test the system anyways.

I have had a few triggers and it triggers the GA reliably.

I appreciate the feedback man, thanks. Yea i rememeber that now about the relay. That was near the end and near me falling asleep last night. Ill read it again to confirm unless @Lex; confirms before.

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Looks like I'll be running the autolearn in mode 2 now. I was wondering why my duty cycle lights weren't lighting up on start up.

@Lex; - Can the GA be wired into an AEM Wideband O2 failsafe?

Yes should work if the output is either pulled high or low when triggered by the failsafe.