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Microtech AuxMAP_ON for water injection

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Old Nov 23, 2009 | 11:58 AM
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AuxMAP_ON for water injection

Just wondering if I could use this function along with a relay, switch, or just plugged directly into the power wire of my water pump to make my water pump come on at a certain boost level? I think this would be a much safer bet than using my current boost activated switch. If I can do this what method of hooking this up would be the most fail safe?
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Old Nov 23, 2009 | 04:37 PM
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Yes you can.
Hook it up through a relay and hook up a 12v led to the output wire to the pump so you know if the wiring has failed for any reason the led will not light up.

nothing is 100% failsafe. But the above will get you close.
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Old Nov 23, 2009 | 06:03 PM
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Thanks man, that's what I'm going to do. The led is a good idea, I'd like to know when it's spraying anyways.
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Old Nov 26, 2009 | 07:58 AM
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I guess if I'm already using the aux out wire for an electric fan, then I really can't use his option.
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Old Nov 26, 2009 | 09:54 AM
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nevermind, after some searching it looks like I just use the white aux wire for the auxmap_on function because the white and red has already been used for he fan. Now just to figure out exactly how to wire up the relay. I know I'm slow...
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Old Nov 26, 2009 | 11:41 AM
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Well I've got it wired up like this. Basically just modified the efan diagram and set it to 10hg's in the auxmap_on and ran the car to test it. No go. What am I doing wrong?

https://www.rx7club.com/attachment.p...2&d=1259257232
Attached Thumbnails AuxMAP_ON for water injection-water-injection.jpg  

Last edited by hondahater; Nov 26, 2009 at 11:43 AM.
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Old Nov 26, 2009 | 04:51 PM
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You have wired the relay correctly.


If memory serves me correctly, their is one temp out put, one RPM output and one LOAD out put.

You may need to use the white/black wire to trigger the water injection.
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Old Nov 28, 2009 | 03:42 AM
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I could not, for the life of me, get this feature to work. The first 30amp relay I had just stayed on no matter what so I'm guessing it was a bad relay. Put another one in and it never came on period. The only thing I could try is maybe hook the white microtech wire up to the new relay to see if maybe that would fix it.
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Old Nov 28, 2009 | 05:24 AM
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I will test the feature tomorrow on the test bench. See which wire is triggered by the map auxilary.
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Old Nov 28, 2009 | 09:41 AM
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Thanks man! For now I hooked up an LED to the boost switch and it seems to be working good (that is a handly little feature) I appreciate the idea.
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Old Nov 28, 2009 | 09:53 PM
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Just a thought, but won't this trigger everytime you have the key on without the engine running, since it will see above 10 hg (atmospheric)?
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Old Nov 28, 2009 | 10:29 PM
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That is correct. LOL.

Well spotted.

Put it on 2-3psi and see what happens
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Old Nov 29, 2009 | 07:06 AM
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Good idea fellas. I'll check this out
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Old Dec 2, 2009 | 03:45 AM
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is it possible to run 3 devices from the Aux output?
each triggered by either load, rpm or water temp.

in the manual i read the following:
NOTE: the Auxiliary output can only control one device; it is not possible to run both the cold air bypass and
boost control at the same time.

can someone clarify?

thanks,
Gunn.
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Old Dec 2, 2009 | 06:28 AM
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Hey Honda H8er, I use my micro. aux for fan control and I use my turbosmart e boost for my injection there maybe more controllers with an aux output lots of turbosmart h8ers but Mine has been perfect FYI
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Old Dec 2, 2009 | 02:03 PM
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Try not to use the eboost.

I lost 2 engines from my stupid eboost.

My map sensor line to the eboost has come apart twice now and the water stops working.
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Old Dec 2, 2009 | 02:54 PM
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The only thing I don't like about the e-boost is that stupid poly line to silicone line. I'm hoping to change that by switching it out to a push-loc fitting.
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Old Dec 2, 2009 | 04:26 PM
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What ever you dont pull the line out the back of the eboost. It will wreck it.

That exact thing you described above is what has killed me 2 engines.
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Old Dec 2, 2009 | 06:10 PM
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I was actually gonna try a 1/8" to 1/4" push-loc line adapter, and just feed the nylon line straight into my push-loc vac system, instead of using that silly silicone adapter.
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Old Dec 2, 2009 | 07:55 PM
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That might work aye. Im not sure. Let me know.

Come to think of it. I wonder if a pneumatic fitting would work?
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Old Dec 3, 2009 | 02:32 PM
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Originally Posted by 20TOR
is it possible to run 3 devices from the Aux output?
each triggered by either load, rpm or water temp.

in the manual i read the following:
NOTE: the Auxiliary output can only control one device; it is not possible to run both the cold air bypass and
boost control at the same time.

can someone clarify?

thanks,
Gunn.
Is this correct? Only one output can be hooked up to the microtech? I haven't tried setting it too 1 or 2psi yet because I haven't had time but I guess I'll just have to have a go at it.
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Old Dec 3, 2009 | 03:13 PM
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the lt10s has 3 outputs.
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Old Dec 3, 2009 | 04:32 PM
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right but can they be used simutaniously or can you only use one of them at a time? For instance I've got an efan, does this mean I can't use any other outputs or is this just wrong info?
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Old Dec 4, 2009 | 04:44 AM
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all at the same time no worries.
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Old Dec 4, 2009 | 08:12 AM
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ok thanks man.
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