ECU-GN Standalone ECU for Turbo Buicks

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This is a "ECU-GN Standalone ECU for Turbo Buicks" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. Complete standalone ECU for the 84-87 turbo Buicks, and 89 Pontiac Turbo TA. When ordering, fill out the info about your car so we can make a startup tune. This will need to be tuned! It will come with a startup tune, but you are responsible for tuning it.


    • Plugs into the factory harness
    • Gives you complete control of tuning
    • Based on the proven MS3Pro core and uses TunerStudio for tuning (license for TunerStudio MS Ultra included)
    • Built in 4 bar MAP sensor
    • Built in wideband O2 controller, comes with sensor and cable (bosch 4.9), starts wideband sensor heater only after engine start for improved life
    • Operates high or low impedance injectors
    • Use the stock ignition. Can use newer coilpacks or coil per plug with proper wiring.
    • On-board automatic datalogging
    • 2nd Built-in CPU with CAN communication and expanded Inputs/Outputs (10 analog inputs)
    • Flexfuel, Traction Control, Boost Control, Launch Control, Water/Meth Injection, antitheft, and much more!
    • Compatible with existing Scanmaster 2.2 or Scanmaster G gauge! (for a SM 2.1, you will need a 2.2 upgrade chip, purchased separately)