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MS3Pro GNX ECU
MS3Pro GNX ECU
MS3Pro Buick Grand National Plug and Play ECU for 84-87 Buick Turbo
AMPEFI MSPNP Dashboard and Gauges
William Avila's Buick Grand National running MS3Pro PNP Standalone ECU Engine Management System - Burnout
William Avila's Buick Grand National running MS3Pro PNP Standalone ECU Engine Management System - staging lanes
MS3Pro Buick Grand National Plug and Play ECU for 84-87 Buick Turbo

84-87 Buick Grand National MSPNP-Pro

5 out of 5 based on 1 customer rating
(1 customer review)

From: $1,149.99

SKU#: MSPNPPro-GNX8487

Options Selection

Select Options Below:



Serial Adapter Options

Wideband Options

Air Temperature Sensor Options

Fluid Temperature Sensor Options

Pressure Sensor Options

Electronic Boost Control Options

Description

Enhance your 1984-1987 Buick Grand National with the MS3Pro Plug & Play ECU – a fully standalone, plug-and-play engine management solution designed for easy installation and maximum performance. This ECU is the ultimate choice for serious racers seeking reliable, custom-tuned engine management for off-road and motorsports applications.


Compatibility:

84-87 Buick Grand National MSPNP-Pro ECU supports:

  • 1984-1987 Buick Grand National: 3.8L Turbo V6
  • 1984-1987 Buick Regal T-Type: 3.8L Turbo V6
  • 1987 Buick GNX: 3.8L Turbo V6

Features:

  • Fully Plug and Play Installation: No wiring required for basic functionality
    • Average Install Time: Under 1 hour!
  • Base Map Pre-loaded: Helps your engine start on the first turn of the key
  • Real-Time Tuning & Data Logging: Connect via laptop for easy data monitoring
  • 8 GB Internal Data Logging: Includes built-in SD card for easy data storage
  • Supports Most Aftermarket Wideband Sensors: Integrates with popular systems for accurate tuning
  • Fits Directly in the Stock ECU Pocket: Installs directly into the stock ECU pocket in the kick panel with no extension harnesses required

Fully Tunable Engine Control:

  • 16×16 Fuel and Ignition Tables: High-resolution tuning for precise fuel control over fuel and ignition mapping
  • Multiple Acceleration Enrichment Strategies: Optimizes fuel and timing for improved acceleration
  • Closed Loop Idle Speed Control: Maintains a stable idle under varying conditions
  • Air Conditioner Control: Manages AC load based on engine performance
  • 6 Sequential Fuel Injector Channels: With individual trim tables for precise fuel control
  • 6 Sequential Ignition Channels: With individual trim tables for precise ignition control. Compatible with OEM Ignition System or the MaxSpark PnP High-Performance Ignition System
  • Onboard Peak and Hold Injector Drivers: Drives both high and low impedance injectors efficiently, no external ballast resistor needed
  • Allows Removal of Stock MAF Sensor: More flexibility in tuning and improved performance
  • Use of Factory C3I Ignition or Coil-per-Plug Conversions: Supports both for ignition control
  • Torque Converter Lockup Control: Enhances automatic transmission performance

Advanced Feature Set:

  • 12×12 Air-Fuel Ratio Target Tables: Use with wideband O2 sensor for precise tuning
  • VVT Support: Full factory VVT control for improved timing and performance (requires wiring into the rear options connector if swapping to a VVT motor or head)
  • Programmable Voltage Regulator Control: Supports OEM NB alternator and charging system
  • Multiple Traction Control Strategies: Add a front wheel VSS for traction control capabilities
  • Built-in 3-Step Rev Limiter/Launch Control: Includes flat shift and burnout rev limiter
  • Real-Time Barometric Correction: Adjusts for altitude changes during tuning
  • Internal 4-Bar MAP Sensor: Reads up to 44 PSI of boost for aggressive tuning
  • Overboost Protection: Protects the engine by monitoring boost levels
  • Closed Loop Boost Control: Requires EBC solenoid kit for precise boost management (stock boost control solenoid does not allow adjusting boost level)
  • Rally-Style Anti-Lag: Boosts performance during launches
  • Water Injection Control: On/Off or variable control for optimized performance
  • Knock Sensor Input: Adjustable sensitivity, crank angle windowing, and more
  • Table Switching Input: Change fuel and spark maps on the fly for different fuels, nitrous activation, etc.
  • Flex Fuel Sensor Input: Seamlessly switch between E85 and gasoline
  • CANBus Connector: Allows interconnection with other MegaSquirt-compatible devices for additional functions (EGT Input, Automatic Transmission Controller, Additional Sensors, etc.)

What’s in the Box:

  • 1984-1987 Buick Grand National MS3Pro Plug and Play ECU
  • 6’ Vacuum Hose for MAP Signal and ‘T’ Fitting
  • 26 Pin Connector for Options Port with 6″ Wire Pigtail
  • M8 Serial Tuning Cable
  • TunerStudio Registration Code

EPA, CARB & Emissions Disclaimer- All ECU's are for race purposes only. It's your responsibility to remain in compliance with all federal, state, provincial, or other laws that apply to you.

Customer reviews

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1 review for 84-87 Buick Grand National MSPNP-Pro

Only logged in customers who have purchased this product may write a review.

Where is this product assembled?

  • This product is assembled in Gainesville, Georgia, USA.

Will this fit other GM turbo V6 applications, such as the Turbo Trans Am, Typhoon, or Syclone?

  • These vehicles used significantly different wiring and electronics; this MSPNP will not fit factory wiring harnesses other than the Buick Regal version.

Is this all that I need to get started tuning my Buick?

  • This is a complete package. But there are some accessories you may want to use to get the most out of this unit.

Questions & Answers

    When will the plug and play setup be available
  1. 0 votes
    Q When will the plug and play setup be available
    Asked by Larry
    A

    Expected release date looks like it will be early March 2018. Please contact us if you would like an email announcing when they're ready for purchase.

  2. What benefits does the PNP version have for Turbo Buicks vs the MS3X besides the obvious wiring simplification and base tune?
  3. 0 votes
    Q What benefits does the PNP version have for Turbo Buicks vs the MS3X besides the obvious wiring s...... Read more
    Asked by Dallas Lansink
    A

    The wiring simplification and base tune are the two biggest selling points - it also has sequential peak and hold injector drivers, and as it is based on the MS3Pro, there's a bit more electrical noise resistance as well.

  4. Is this using the factory one wire 02 sensor in the pre-installed base tune for the Buick?
  5. 0 votes
    Q Is this using the factory one wire 02 sensor in the pre-installed base tune for the Buick?
    Asked by Godfrey Peterkin
    A

    Yes, the base tune will be configured for the factory narrow band sensor, but it is very straightforward to change it to most aftermarket wideband controllers.

  6. Will it come with a plug kit for 18-pin auxiliary connector? Or is that a separate item? If it is separate, what's the part number?
  7. 0 votes
    Q Will it come with a plug kit for 18-pin auxiliary connector? Or is that a separate item? If it is...... Read more
    Asked by Andrew Scott
    A

    The connector is included. We will also sell replacements separately if you lose the one shipped with the ECU.

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