aem EMS-4 standalone ECU

[Jason@SportsCar]

Originally Posted by maxthehax

Hi guys, next step in my project is running a standalone ecu (currently using aem FI/c). I would like to use the aem EMS, but I am not sure of some compatibilities with my 1NZFE...

Sensors that I know EMS will support/run easely (correct if Im wrong);
1.Mag crank sensor (already work with FIC, why not)
2.Mag cam sensor (already work with FIC, why not)
3. 370cc deatschwerks injector, 12.2ohm high impedance so why not.
4.Coolant temp, I will use aem unit...
5.Air temp, I will use aem unit...
6.Throttle position sensor (already work with FIC, why not)


Sensors that I am not sure to be able to run;
1.My oem 1nzfe ''coil on top''??
2.My idle air control valve with 3wires on the TB??
3.Could I just use my aem wideband O2 sensor or I still need the original one?
4.Knocksensor??

Also there is 2 kind of wiring kit you can buy, first is a small one with no relay, second is a big one with relay & fuses... Which one I would need? Probably the big one since I dont know how I could still use the stock fuse/relay box.

Thanks big time, and I know most of you guys run Yaris, so you may not answer my question about the idle air control valve (TB is dif from echo)... But thanks for help anyways!

I use the EMS 2. But it is sort of a hybrid install, I still have the stock ECU to run the drive by wire throttle body.

I am using nearly all OE sensors, along with OE coils and injectors. However, the factory MAF is now used only for air inlet temp because we are using an AEM MAP sensor. We are also using the AEM wide-band O2, the stock O2 is gone.

[maxthehax]

Originally Posted by Jason@SportsCar

I use the EMS 2. But it is sort of a hybrid install, I still have the stock ECU to run the drive by wire throttle body.

I am using nearly all OE sensors, along with OE coils and injectors. However, the factory MAF is now used only for air inlet temp because we are using an AEM MAP sensor. We are also using the AEM wide-band O2, the stock O2 is gone.

Okai so if you are still using the stock ECM to run your drive by wire TB, this is because the EMS cannot by itself?? I have an 2005 echo, so my TB is the drive by wire...

Is there any other reason for you to keep the stock ecu installed?

Thanks very much for your fast informations!

Also, what about the wiring kit needed? Do you guys used the big 96'' with the relays & fuses?

[Jason@SportsCar]

Originally Posted by maxthehax

Okai so if you are still using the stock ECM to run your drive by wire TB, this is because the EMS cannot by itself?? I have an 2005 echo, so my TB is the drive by wire...

Is there any other reason for you to keep the stock ecu installed?

Thanks very much for your fast informations!

Also, what about the wiring kit needed? Do you guys used the big 96'' with the relays & fuses?

The EMS 2 can not run the DBW. The new AEM Infinity is supposed to, but they only have limited applications so far.