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MR-S (2ZZ installed) and Link G4 Atom

Antonis Latsos

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I'd be looking at a G4 Storm as a minimum.  You run out of inputs/outputs quite quickly on the smaller ECU's and I'm not sure the Atom has VVT functionality built in...  I wouldn't recommend trying to bodge VVT control up with a GP Aux output configured to drive the solenoid.  I had a Storm for my 2zz but I ended up installing a G4 Xtreme as I needed additional inputs and outputs for the turbo setup.

I've got the following outputs wired:

  • Fuel Pump
  • Idle Solenoid
  • Lift Solenoid
  • VVT Solenoid
  • Boost Control Solenoid
  • Tachometer feed
  • Cooling Fan Relay
  • Check Engine Light
  • Aircon Clutch trigger
  • Coils x4
  • Injectors x4



  • Coolant Temp
  • Air Temp
  • MAP Sensor
  • Fuel Pressure Sensor
  • A/C Request
  • Wideband Input
  • Speed Signal
  • Start position


Write down what you'll be using, then fill out the installer table to see if the ECU suits your needs without having to go waste spark or batch injection.

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