Skip to main content

Pro motorsport, Hotrod, power boats

OBR Control Systems Inc is a world wide supplier of automotive electronics. We specialize in OEM engine controllers for prototype engine development and engine testing as well as for motorsports. Engine systems can be supplied for engines having up to 16 cylinders with direct injection, port injection or a combination of the two. Systems can be supplied for gasoline as well as for diesel engines. OBR products are used in the most demanding environments ensuring performance and reliability.

EFR14 Direct Injection Driver Module, max 12 Cylinders


P/N# Model Price in USD
EFR14 Driver module for DI injectors and high pressure fuel pumps 3550

EFR14 Direct Injection Driver Module, max 12 Cylinders

  • Driver module for use with our Euro-8 and Euro-12 generic controllers on direct injection engines having 6, 8, 10 and 12 cylinders.
  • 12 DI injector drivers with current handling up to 15A.
  • 2 drivers for high pressure Bosch, Denso and Hitachi fuel pressure pumps.
  • Full access to current and timing profiles for all drivers.
  • Max engine speed > 11,000 RPM.

System overview

  • Aircraft grade aluminum enclosure with 2 motorsport connectors
  • PowerPC microprocessor
  • 12 cylinder fully sequential direct injection drivers
  • 2 drivers for high pressure DI fuel pumps
  • Programmable injector currents for boost and hold stages
  • Programmable boost voltage
  • Programmable fuel pump currents for hold stages
  • Programmable timers in current profiles


  • 12 digital inputs for DI injector command
  • 2 digital inputs for DI high pressure fuel pump command
  • 6 analog sensor inputs (0-5V)


  • 12 pairs of low and high side drivers for DI fuel injectors
  • 2 pairs of low and high side drivers for DI high pressure fuel pumps
  • 3 independent 5.0v sensor power supplies


  • 2 CAN 2.0B interfaces


  • Dimensions (very small and light)
    • Weight 480g (16 oz.)
    • 187 x 134 x 25mm  (7 1/8" x 5 1/4" x 1")
    • All aluminum and high-end vibration stable SMD PCB
  • 2 motorsport connectors with high pin density (74 in total)

Condition for use

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


These parts are legal for sale and use on uncontrolled (Non-Emissions Controlled) vehicles and on off-road racing vehicles ONLY.

WARNING: It is against the law to install these parts on an emissions controlled vehicle

All OBR products are exclusively manufactured for racing purposes. Installing these products on any vehicle eliminates the legal use, in any capacity, on public roads/highways and may be subject to fines and/or criminal liability as per the Clean Air Act.

Product Information

Description Downloads
EFR14 direct injector driver module PDF
efi_gdi_efr14_us.pdf ( pdf 1.35 MB )


Description Downloads
EFR14 Pinout PDF
efr14-pinout.pdf ( pdf 0.4 MB )

Data Files

Description Downloads
EFR14 firmware version 09
efr14-09.xip ( xip 0.06 MB )