So I installed my scienceofspeed supercharger, took my timing chain cover off to have a drain bung welded, installed the AEM EMS and had my tuner come install a base map, however he wasn’t getting a crankshaft signal, car started right up on the stock ECU however, then we tried another AEM EMS, exactly like mine.. same thing no signal.. here’s a list that will be easier to understand if my troubleshooting steps:

No signal from crankshaft sensor to AEM EMS, doesn’t start on AEM because of this, tuner says.

Stock ECU starts it right up with sensor plugged in, no CEL, idles fine but boggy (no tune).

When sensor is unplugged on stock ECU, starts but dies quick, shows CEL for bad sensor

Sensor shows resistance around 2,100 ohms (manual says between 1,850-2,450 is good)

When cranking, sensor shows AC voltage at about 0.3 (online states between 0.3 and 5 is normal)

When car starts, sensor shows AC voltage at 1.5 volts, when starting it was a bit more but at idle it’s about 1.5

Check all wiring, no shorts, everything reaches the cabin.

 

Are you sure they used the correct base map? AEM provides base maps, try that

also which specific AEM EMS do you have

 

 

 

Well seems pretty clear the problem is in the AEM EMS, maybe it's just more sensitive than the OEM ecu.
Are you getting the measurements right at the ecu connector?
Have you tried to take a look at the signal with a scope?

 

 

A scope could tell a lot more on what's happening so if you can get one hooked up that might really help.
You could also try and check the trigger wheel teeth for any damage, if you remove the sensor and peek inside the hole while you hand turn the crank.