triggering nitrous map on aem ems with aem methanol controller

[alloutmotor]

so i have been thinking how to trigger the nitrous map and a solenoid (acts as a check valve) with the aem methanol controller in conjunction with the aem ems.

these are my thoughts thus far and i would like others to chime in,

the aem methanol controller comes with a 0-5v output (blue wire), i am thinking to use this wire and input it into the ems as an egt input.

then configure switch 7 to turn on at a certain voltage based on that input (aem states that .328v = 0 psi, 5v = 38psi simply plot this with a scientific calculator and pick a starting put)

after this is setup go into the nitrous maps and configure it to come on with switch 7, then you can use the nitrous map to compensate for fueling and timing

my question is which output (via nos output) is best to use to trigger the solenoid

the main reason i want to use a solenoid is to reduce drip when the system is turned off for a split second (see videos below), i firmly believe alot of people have issues with this as well as siphoning, (i know a check valve helps). If the solenoid fails im sure the aem methanol controller would pick this up and shut the system down

http://www.youtube.com/watch?v=UQx3pT6TgiM

[trbo2dr]

i wouldn't use the 0-5v output from the injection controller because that output is scaled to the on-board map sensor inside the controller.  just because there is pressure or voltage outputting on that line doesn't mean that you have injection.

i think a better option would be to get either the aem flow gauge or that new failsafe and use the 0-5v output from that because it's scaled to flow.  that way you don't trigger your nitrous maps without knowing that you have FLOW first, and not just pressure into the controller box.

any of the standard outputs will work but remember that they're all limited to 1.5 amp.  if the solenoid you use pulls more current than this you'll need to use a relay. 

how do you think the aem controller would know if the solenoid fails or not?  i can't think of any way that it would but either the flow gauge or the failsafe will.

good idea overall.  i hope it works out for you.

[alloutmotor]

thanks i set it up and its working fine so far, as far as knowing if the solenoid fails ill work on that in the mean while, the key part for me at the moment was to trigger the nitrous map and activate the solenoid,