AEM Series 2 Plug Play EMS 306053 User Manual

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Installation Instructions for: 
EMS P/N 30-6053 
 
Fits vehicles: 
2006-2008 Honda S2000 AP2 F22C1 
 
 
WARNING:
 
,! 
This installation is not for the tuning novice nor the PC illiterate! 
Use this system with EXTREME
 caution! The AEM EMS System 
allows for total flexibility in engine tuning. Misuse of this 
product can destroy your engine! If you are not well versed in 
engine dynamics and the tuning of management systems or are 
not PC literate, please do not attempt the...

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Thank you for purchasing an AEM Engine Management System.  
 
The AEM Engine Management System (EMS) is the result of extensive development on a 
wide variety of cars. Each system is engineered for each particular application. The AEM 
EMS differs from all others in several ways. The EMS is a stand alone system which 
replaces the fuel and ignition functions of the factory ECU and features unique Plug and Play 
Technology, which means that each system is configured especially for your make...

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Read and understand these instructions BEFORE attempting to install this product. 
• Sufficient battery voltage during cranking (starting) 
Having enough battery voltage when you crank over your vehicle is critical to the 
operation of your vehicle and your AEM EMS. For the EMS to function properly, the 
battery voltage must remain at or above 8 Volts when the vehicle is first starting. This 
is the time when your electrical system will be worked its hardest and be at its lowest 
voltage....

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sensitive, you can depin Pin A1 that goes into the stock ECU, but the malfunction 
code for this sensor will turn on. If this is done, the knock sensor calibration will need 
to have 0.3 Volts added to each breakpoint in the calibration. 
 
• Traction control function 
When active, the stock traction control system will be affected by adding the EMS. 
The stock traction control system uses throttle, fuel, and ignition changes for the 
traction control system. Since the fuel and ignition are...

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1)  Install AEMTuner software onto your PC  
The latest version of the AEMTuner software can be downloaded from the AEMTuner 
section of the AEM Performance Electronics forums found at www.aemelectronics.com  
Series 2 units are not supported by the older AEMPro tuning software.  
 
2)  Connect AEM adapter harness 
a)  Disconnect negative terminal from battery 
b)  Access the stock Engine Control Unit (ECU). The location of the ECU on the Honda 
S2000 is behind the left side driver’s side...

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d)  
Remove the clip that is hidden underneath the rubber sealing trim next to the 
dashboard and the clip for the plastic cover over the stock ECU using a plastic pry 
tool to avoid scratching the paint and plastic cover. 
 
  
Remove clip     Remove clip 
 
e)  
Remove the carpeting that runs along the lower driver’s side door sill to place the 
wiring harness provided. Next, remove the two screws holding the plastic cover 
behind the driver’s seat to place the EMS in the area behind the...

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g)  
How to use provided wire taps: 
   
Run harness TPS wire through   Place vehicle wire in tap 
   
Screw in tap onto vehicle wire  Place harness TPS wire as shown 
 
Screw TPS wire into tap 
 
h)  
Carefully disconnect the wiring harness from the ECU. Avoid excessive stress or 
pulling on the wires, as this may damage the wiring harness. All connectors must 
be removed without damage to work properly with the AEM ECU. Do not cut any 
of the wires in the factory wiring harness to remove...

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i)   
Connect provided adapter harness to factory wiring harness and stock ECU. Then 
route the harness from the stock ECU through the driver’s side door sill and 
underneath the driver’s side seat. Take note of the bends that the harness will 
require so that the plastic cover that protects the harness will fit over the AEM 
wiring harness. A few zip ties will hold the harness against the stock ECU so that 
the clutch pedal will not contact it. See photo above to get an idea of the stock...

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2)  Repin ECU pins (only necessary if adding or relocating ECU pins) 
a) Locate a small screwdriver (a precision 1.5mm wide flathead screwdriver is 
recommended) and carefully pry white plastic retainer using both slots in the retainer 
so it disengages vertically about 1mm as shown in the following pictures: 
 
        Screwdriver lifts here       Plastic retaining mechanism after lifting 
b)    Next remove the metal pin from the plastic connector by lightly prying on the plastic 
tabs...

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h)  NOTE: the throttle range on this vehicle is set differently from other EMS applications! 
Disconnect the DBW connector on the throttle, then perform the procedure as follows 
by holding the throttle open and closed manually at the throttle plate. 
Set the throttle range: Select Wizards>>Set Throttle Range. When finished, check 
that the ‘Throttle’ channel never indicates less than 3.2% or greater than 99.8% (must 
be 2.2% or more since the DBW throttle will close slightly when the...