AEM Series II vs ems-4
03-04-13, 08:59 PM
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Series II vs ems-4
Ok guys im at the point in my build i need an ecu. What are your guys opinions on both of these units, the series II and the new ems-4. I know the price difference i just want to hear opinions.
03-05-13, 10:15 AM
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They have the same software. Internally they do the same thing. The difference is in outputs. The EMS-4 only has 4 injectors, 4 Coils and a handful of spare inputs and outputs. The Series II has up to 12 injectors putputs, up to 12 coil drivers, 12 Low side outputs, 4 EGT inputs, 2 Wideband inputs, 2 Knock inputs, has the ability to drive an OMP.
Your needs will dictate which ecu you will need. What is your setup and what are you looking to do?
EB Turbo
Your needs will dictate which ecu you will need. What is your setup and what are you looking to do?
EB Turbo
03-05-13, 04:35 PM
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What options are you interested in using?
OMP
Fuel trim
Trim trim
Boost trim
Boost hi-low
Idle control
Boost control
Air conditioning
2 step rev limit
Flex fuel control
extra injectors
Extra coils
EGT sensors
Fuel p, oil p, oil t, E MAP,
Fan control
Fuel pump control
Or do you just want bare bones to run the engine?
EB Turbo
OMP
Fuel trim
Trim trim
Boost trim
Boost hi-low
Idle control
Boost control
Air conditioning
2 step rev limit
Flex fuel control
extra injectors
Extra coils
EGT sensors
Fuel p, oil p, oil t, E MAP,
Fan control
Fuel pump control
Or do you just want bare bones to run the engine?
EB Turbo
03-05-13, 05:33 PM
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I'm pretty much looking for everything up there minus the air conditioning. I don't really need the more than 4 injectors or coils. I heard the ems-4 can't control the omp is there anyway around that
03-05-13, 06:21 PM
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You would have to run the stock ecu in parallel with the EMS4 to retain OMP. By that time you will almost add the price difference between the EMS4 and the Series II. Sounds like you need a Series II. Do you still have the stock wiring harness?
Eb Turbo.
Eb Turbo.
03-05-13, 11:05 PM
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I dont have the engine harness i am looking for one though. So what you're saying is itd be just easier to run a series II than figure a way to run an ems-4
