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AEM infinity not reading inputs/sensors

Old 01-10-2019, 08:20 PM
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Default AEM infinity not reading inputs/sensors

I recently installed an aem fuel rail and fic 1200cc injectors along with the aem infinity plug and play in my ap1 s2000. I've connected to the vehicle and finished the set up wizard by going through all the basic tabs but i noticed when i get to the tps tab to set wot and closed that it never really reads any voltage inputs.. i saved everything and attempted to start the vehicle a few times. when i load a basic crank/start up window it seems as though none of the sensors on the vehicle are being read by the aem. Ive attached a screen shot. yes the file is saved as "idontknowwhatimdoing" lol... because obviously i dont.. any help would be appreciated! im just trying to get the car running.. thanks in advance!

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Old 01-10-2019, 09:34 PM
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I was also doing some searches online and found that my fuel pump isnt priming when i have the aem plugged in, however when i plug the stock ecu back it in primes.. i pulled the spark plugs and have come to the conclusion that there is no fuel making it to the cylinders. which is hopefully the only reason it wont start.. any ideas on why?
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Old 01-10-2019, 10:17 PM
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There is so much to set up in the infinity it will easily take you over an hour, even if you know what you are doing. You need to have your tuner do it, or spend the time reading the infinity tuner user manual.


To answer your question, Fuel is probably not your issue. The ECU is turning on the fuel pump while you are cranking the engine. If you go into "outputs" under setup wizard and click on fuel pump, sent prime to 2000 ms. That will prime your fuel pump when key on for whatever time you specify.

It's been awhile since I set mine up, but I vaguely remember having a problem with the tps. After you set open and closed voltages, go to a tab that has your throttle % and see if it is working correctly ie 0%, 100%, and everything in between. The infinity software can be very glitchy.
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Old 01-14-2019, 01:06 AM
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Make sure you haven't crossed your Throttle position sensor with your MAP sensor, they have the same plug so it's easy to do. Upload your basemap, input your fuel injector data properly, calibrate your TPS, and finally make sure that when engine is off your MAP sensor should be reading 0(engine is neither pulling vacuum or boost when it's off). That's really all there is to it for it to get it running at first.
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Old 01-14-2019, 06:19 AM
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Not sure if they fixed it but the fuel pump output had a condition for > 1rpm (or similar). I think I had to Change it to -1 or remove it to get the pump to prime
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Old 01-14-2019, 07:17 PM
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was able to figure it out. the vehicle had an aftermarket immobilizer which was preventing everything from reading properly.. ripped all the garbage out and was able to start up perfect... the idle is a little rough im not sure if its the injectors(ive heard fic are a little rough at idle) but at least i can get it to the tuner! thanks all!
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