Buick Grand National 1984-1987 MS3Pro PNP ECU

Regular price $1,149.99


(P/N: MSPNPPro-GNX8487)

The MS3Pro Buick Grand National Plug and Play Engine Management System  Fits 1984-1987 Buick Regal with the 3.8 Turbo V6, including Buick Grand National, T-Type, and GNX.  This powerful PNP ECU gives you FULL CONTROL of all aspects of your engine management, fuel, ignition, and anything else you are looking to be able to monitor and control.  Powerful datalogging capabilities, turbo boost control, nitrous control, you name it!

Buick Grand National Plug and Play Model Features:

  • Fully Plug and Play Installation – No wiring required for basic functionality.
    • Average install time is under 1 hour!
  • Base map is pre-loaded to help your engine start on the first turn of the key
  • Real time tuning and data logging with a laptop connection
  • 8 GB internal data logging with built in SD card
  • Supports most aftermarket wideband sensors
  • Fits directly in the stock ECU pocket in the kick panel. No extension harnesses required!

Fully Tunable Engine Control for your Grand National / Turbo Buick!

  • 16×16 Fuel Tables allow high resolution tuning
  • 16×16 Ignition Tables
  • Multiple Acceleration enrichment strategies
  • Closed Loop Idle Speed Control
  • Air Conditioner Control
  • 6 sequential fuel injector channels with individual trim tables
  • Onboard peak and hold drivers support both high and low impedance injectors – No external ballast resistor is needed!
  • Allows removal of stock MAF sensor
  • Use either factory C3I ignition or coil per plug conversions
  • Torque converter lock up control
  • Boost control using stock or aftermarket boost control solenoids

Advanced Feature Set – Buick Grand National Tuning to the max!

  • 12×12 Air Fuel Ratio Target Tables for use with wide band O2 sensor for precise tuning and table trim.
  • Multiple traction control strategies
  • Built-in 3-step rev limiter / launch control with flat shift and burnout rev limiter
  • Time based timing / boost increase after launch
  • Real time barometric correction
  • Internal 4-bar MAP sensor reads up to 44PSI of boost
  • Overboost protection
  • CO2 based boost control
  • Set boost by RPM and throttle, ground speed, or gear (Improve performance with EBC solenoid kit
  • Rally style anti lag
  • Water injection control – on/off or variable
  • Knock sensor input with adjustable sensitivity, crank angle windowing, and more (advanced features require bypassing ESC module)
  • Table switching input. Change fuel and spark maps on the fly for different fuels, nitrous activation, etc.
  • Input for flex fuel sensor – switch between E85 and gasoline on the fly!
  • CANBus connector allows interconnection of other MegaSquirt-compatible devices for additional functions. 
    • EGT Input
    • Automatic Transmission Controller if swapping to a 4L60E/4L80E
    • Additional Sensors to monitor pressure, temperature, etc
    • The possibilities are limitless!

What you get in the box:

  • MS3Pro Plug in ECU for the Buick Grand National
  • RS232/Serial tuning cable
  • Tuning Software and Documentation on USB memory stick with three base maps included
  • 6′ Vacuum Hose for MAP Signal and ‘T’ fitting
  • Registered version of TunerStudio and MegaLog viewer included

We recommend our optional USB tuning cable for trouble-free connection and tuning