Hi all,
I’m in the process of adding a Methanol injection system to my boosted, 2004 toyota matrix. Im using the AEM V3 methanol injection kit. My question is what Input/output should I be using the the EMU Black?
The AEM pump controller requires a 0-5V input for boost which I plan to get from directly from the emu black which output should be used. Can I use any unused output or is there a suggested one for this use case? The Controller also sends an “I am on signal” which I want to use as a timing table switch. Much like the input question, is there a suggested input channel that I should use, or just any open one? This signal does not come on if the AEM controller sees an issues, such as pump not turning on, low power, or low fluid level.
Looking at the AEM V3 METH Injection wiring diagram, looks like there is yellow wire labeled “ARM SWITCH.” That could just be wired to a switched 12v source. That way (since there is already a constant battery 12v and ground wired) it can just come on when you key the car on. Doesn’t mean it is operational but it will be ready to work.
As far as the out wire labeled “BOOST SAFE,” does that wire simply output an “on” or “off signal?
So, powering it up is not an issue for me; Im just gonna pull power off my ECU cables.
about the boost safe. AEM describes it as a switched ground, that when grounded, sends an error signal to whatever electronic is being used to controll everything. This way the map change does not occurr. Is there an input that this should be pinned to? Also, what output should be used to run a boost voltage reference?
I suggest removing the aem controller altogether and just running the pump directly via the ecu, i use a sirhc pump ssr which costs around 50$
You need to hook up a MAP sensor line to the controller as stated in the instructions in order for the controller to work properly. You could run the “boost safe” to a switch INPUT and use it to do whatever you want it to do or not do. I wouldn’t know what you want it to do or how you plan on implementing it so that is up to you.
As baxter mentioned above, I would ditch the controller as well and just wire the pump into the EMU with a SSR and just control the pump directly. You could use say the nitrous settings to control the pump if you want.