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Engine management systems

OBR control systems is an award winning world leader in the supply of motorsport electronics. Specializing in engine, power and communication management systems. Our products are used in the world's most demanding environments ensuring performance and reliability.

Euro 4 Euro 4 Euro 4
Euro 4 thumb Euro 4 thumb Euro 4 thumb


P/N# Model Crank And cam Trigger Price in USD
EFF14B-000 Euro 4 ECU for engines with up to 8 cylinders For use with VR crank and camshaft sync sensors 1080
EFF14B-100 Euro 4 ECU for engines with up to 8 cylinders For use with Hall effect crank and camshaft sync sensors 1080
EFF14B-400 Euro 4 ECU for engines with up to 8 cylinders For use with VR crank sensor and Hall effect camshaft sync sensor 1080

Euro 4

Management system for engines having up to 8 cylinders
Drive-by-wire throttle control
Variable camshaft timing (multi-cam control)
Paddle shift with closed loop control
CAN BUS input and output
Built-in high speed data logger
Automatic closed loop fuel mapping
Traction control
Knock control
Software for direct injection engines (requires external DI driver module - see EFR14)

System overview

  • PowerPC microprocessor
  • 8 cylinder fully sequential fuel injection
  • Dual-stage fuel injection for stand off injectors
  • Ignition output handles both logic and inductive coils.
  • Drive by wire throttle PID control
  • On-board data logger with high speed sampling rates (200hz)
  • Automatic fuel mapping
  • Closed-loop lambda control
  • Closed-loop boost control
  • Closed-loop traction control
  • Closed-loop paddle shift control
  • Closed-loop variable camshaft control (VCT, VVT, VANOS etc.)
  • Closed-loop direct injection fuel pump Bosch and Hitachi (external driver required)
  • Closed-loop water pump control
  • Closed-loop pit lane speed control
  • Closed-loop idle control (ETB, stepper motor, ISC valve and ignition)
  • 2 selectable maps (all features in the ECU can be switch while driving)


  • 20 analog inputs (0-5v)
  • 8 user defined CAN inputs
  • 4 trigger inputs (Hall/VR) for crank and cam sensors
  • 4 wheel speed inputs (Hall)
  • 3 spare digital inputs
  • 2 knock sensors
  • 1 built-in wide band lambda controller
  • 1 built-in barometric pressure sensor


  • 2 CAN 2.0B interfaces
  • Multiple pre-programmed and user defined CAN export and import
    • FIA RX datalogger
    • Bosch ABS data import
    • General data import and export
    • VW Dash protocol (500Kbit)
  • 16 CAN identifiers available for export
  • 2 CAN identifiers available for import


  • 8 fuel injector drivers
  • 4 inductive ignition drivers
  • 4 logic ignition drivers
  • 8 multipurpose PWM and switch outputs
  • 1 lambda sensor heater
  • 1 electronic throttle body (full H-bridge)
  • 1 stepper motor driver (full 4-phase)
  • 4 independent 5.0v sensor power supplies

Special features

  • 4 lambda sensors for individual closed loop PID cylinder trim
  • Special engine trigger patterns including several for motorcycle engines
  • Control strategy for paddle shift and air compressor
  • Control strategy for sequential closed loop gear change
  • Traction control with target slip maps and PID control
  • Pit lane, launch and external adjustable manual limiter
  • Programmable firing order
  • Knock control
  • Comprehensive CAN features
  • Special version available with fully encrypted software
  • Launch control (with advanced rpm vs time curve)


  • Dimensions (very small and light)
    • Weight 365g (13 oz.)
    • 165 x 95 x 21mm  (6 1/2" x 4 3/4" x 7/8")
    • All aluminum and high-end vibration stable SMD PCB
  • 2 automotive Molex connectors with high pin density (96 in total)

Conditions for usage

  • Temperature range -40 to 125 Celsius (-40 to 257 Fahrenheit)
  • Power supply 7-16v
  • Splash-proof

Product information

Description Downloads
OBR Euro 4 product information
OBR Euro 4.pdf ( pdf 1.81 MB )


Description Downloads
PDF version
OBR Euro 4 Pinout.pdf ( pdf 0.35 MB )


Description Downloads
Euro-4 data file version 346
euro4-v346.xip ( xip 0.28 MB )