AEM Series 2 EMS, 2000-2005 Honda S2000


AEM Series 2 Plug & Play Engine Management System. Among many improvements:
works with factory S2000 coolant temperature gauge
USB & Serial connections
increased internal logging capacity
increased processor speed
AEM Series 2 Programmable Engine Management System is more powerful than its predecessor. In addition to more robust hardware, there are several improvements over the original EMS. Like its predecessor, AEM's Series 2 Plug & Play EMS plugs directly into a vehicle's factory ECU harness and requires no additional wiring or hardware. Windows compatible software (2000, XP, NT, 98, 95, ME) makes the task of copying, viewing and manipulating data as simple as a click of the mouse. Our new AEMTUNER software is infinitely adjustable software and allows tuners to program virtually any combination of engine control, power adders and auxiliary devices, and accurately delivers proper amounts of fuel and correct ignition timing for any boost level or operating condition.

The AEM EMS accepts multiple inputs including wide band O2 sensor. We recommend either the AEM Inline Wideband, the AEM Wideband Gauge. Both feature 5 volt outputs which can be pinned into the ECU for wideband monitoring and feedback. The AEM EMS is also compatible with the AEM Serial Gauge (for displaying any parameter from the ECU).

Like all stand alone engine management systems, the AEM EMS is for off road use only and should never be used on pollution controlled vehicles. This engine management system removes the factory OBD2 system.


  • Plugs directly into the factory harness. No rewiring necessary.
  • Uses all the factory sensors.
  • Includes start up calibrations.
  • System is fully enabled and unlocked - Never pay for upgrades!
  • Context sensitive help eases tuning process.
  • Maps can be password protected by the tuner to prevent unauthorized usage or sharing.
  • Runs on Windows-compatible software.
  • 12 peak and hold injector drivers (Supra only).
  • 8 direct-fire coil outputs.
  • 16 general-purpose outputs.
  • 8 definable switch inputs.
  • 4 EGT inputs with fuel control.
  • 1MB of internal data logging.
  • Electronic boost control.
  • Full idle control.
  • Programmable traction control.
  • Software definable knock control.
  • Two step launch control.
  • User configurable soft-cut rev limiters.
  • Wet or dry nitrous control.
  • Tune using new USB communication port or serial port.
  • Works with all AEM gauges.
AEM Series 2 EMS, 2000-2005 Honda S2000