3SGTE EMS Wiring Adapter MR2 Turbo ST185 ST205

  • Model: gen2_3_adapter
  • 3 Units in Stock


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For all 2nd and 3rd Generation 3SGTE engines, including MR2 turbo and all ST185/ST205 variants, USDM and JDM.

This ingenious little box lets you wire up virtually any engine management system to control your second or third generation 3SGTE engine using the factory wiring harness. It is the same adapter box I sell as part of the Haltech Platinum 1000 plug-and-play kits, but it is now available for purchase directly so you can wire in the EMS of your choice -- Haltech, Hydra, AEM Pro, Wolf, Motec, MegaSquirt or any other.

The two-layer circuit board is laid out to minimize noise, and the screw-down header posts are labeled with each pin. A set of jumpers is used to configure the board for the different wiring configurations, including:

  • 1990-1992 USDM and JDM MR2 Turbo
  • All ST185 (including RC/CS models)
  • All ST205
  • 1993+ USDM MR2
  • 1993+ 3rd Gen JDM MR2

This will save you many hours in wiring up an EMS, and will preserve your factory harness so you can swap back and forth to the factory ECU at will.

As an added bonus, there is EGT amplifier circuitry onboard if you want to add a DIY EGT to your installation. I'll include a parts list.

What is included: Assembled adapter board with plug interface, extruded aluminum case with a punched, grommeted hole in the rear panel. A blank front panel is included as well. 

Please specify which car/year/market and I'll pre-configure the jumpers for you. ST185 RC/CS and ST205 owners, there are options for controlling the intercooler pump and/or water injection, I'll email you to discuss how you want it.

This product was added to our catalog on Tuesday 12 January, 2016.

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