Advanced engine management system with dual wideband lambda and 8 coil drivers

The EM112 is a powerful and extensive engine management system for engines of up to 8 cylinder. It features dual wideband lambda inputs, 3 CAN buses, a high-speed internal logging system and advanced gearshift control.

GEMS have been designing and manufacturing engine management systems for over 25 years and bring all of that experience along with the latest technologies to provide this highly capable yet cost effective system.


  • Fully configurable with GWv4 software (Supplied separately)
  • Dual Wideband Lambda
  • Gearshift control
  • iStARS generator support
  • High speed internal data-logging
  • Suitable for naturally aspirated or boosted engines
  • Adjustable fuel timing for engine speed and load
  • Anti-lag system with fuel and ignition cutting with ignition retard
  • Closed loop lambda control
  • Drive by wire throttle control
  • Turbo wastegate control
  • 4 channel variable valve timing
  • Uneven firing angles
  • Multiple fuel, ignition, vvc tables
  • Internal G Sensor
  • Up to 8 calibration combinations for fuel, ALS, launch etc


  • 8 x 20A peak IGBT ignition drivers
  • 8 x injector drivers with programmable peak and hold
  • 4 x 10A PWM half bridges
  • 12 x 3A PWM low side drivers
  • 20 x 0-5V 12bit analogue inputs
  • 2 x Differential Analogue Inputs
  • 12 x Logic timing inputs (4 x Software selectable Logic or VR timing inputs) **
  • 2 x Wideband lambda inputs, ADV/LSU4.9 or LSU4.2 software selectable
  • 2 x Knock inputs
  • 2 x Battery sense inputs
  • 3 x CAN2.0 bus
  • LIN Bus
  • Internal barometric sensor
  • Internal 3 axis G sensor and gyroscope
  • 256MByte logging memory
  • 32KByte per second logging throughput
  • Ethernet PC comms
  • 112pin Molex CMC connector
  • Size: 186 x 138 x 36mm
  • Weight: 480g

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