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DD-EFI 12.3" Pro Dash for 84-87 Buick Grand National

DD-EFI 12.3″ Pro Dash for 84-87 Buick Grand National




GM Closed Element CLT/Oil Temperature Sensor with Pigtail

GM IAT Sensor with open element & pigtail

Oil Pressure & Temperature Combo 100 PSI / 500°F with 8.5 feet flying lead

0-100 PSI Pressure Sensor & 15ft cable w/ 90° Boot Combo


DD-EFI 12.3″ Pro Dash

Megasquirt Digital Dash

12.3″ Pro PNP Dash for 84-87 Buick Grand National

Build Time up to 6 weeks

The DD-EFI 12.3″ Widescreen Digital Dash is the 1st fully Plug-N-Play Digital Dash that can be installed using any Megasquirt equipped vehicle.  The main focal point is the 12.3″ Ultra Widescreen giving you a huge real estate for displaying your custom dashboard/gauges.  This is an all-in-one enclosure for direct installation into your vehicle.

Internal I/O Module – provides (7) Digital Inputs, (5) Analog Inputs, (1) Fuel Level Input, (2) PWM Outputs.  This provides the much needed additional inputs such as Turn Signals, High Beam, Oil Pressure, Fuel Level, etc.

CanBus Communication – I/O expansion via CanBus to the MS ECU providing 5 additional sensor inputs, dedicated fuel level input, 7 digital inputs, two speed inputs, and 2 PWM capable outputs.

Built-in Internal GPS – provides a solution to commonly requested need for Speedometer, but also gaining the abilities for Latitude/Longitude, and Economy and Performance Fields.

Custom 84-87 Grand National Bezel – This is a direct bolt-in Digital Dash for your 84-87 Grand National completely replaces the Factory Instrument Cluster and Bezel.  The bezel provides the factory look/feel, while modernizing your Grand National to the next level.

Plug and Play Features

  • CanBus Communcation to your MS ECU
  • Automatic Datalog Recording:
    • 32GB Internal Storage
    • Automatically stops datalog and saves your projects tune file
  • Sleep Mode
    • Hibernates after Ignition is removed
    • Shutdown preset to 60 minutes after Ignition remains off
    • User configurable shutdown timing

What’s Included

  • DD-EFI Digital Dash
    • 12.3″ Full Color LCD Screen
    • Internal GPS
    • 32GB Internal Storage
  • Power Supply Connector:
    • Red – 12V Battery
    • Black – Ground
    • Yellow – 12V Ignition (Switched)
    • Blue – Door/Dome Light Trigger (Optional 12V+)
    • CanBus – H/L to MS ECU
  • Pre-Installed Software
    • TunerStudio
    • MegaLogViewer
    • Any Desk

Pro Dash Quickstart Guide

Utilizing Pro Dash Inputs in TunerStudio

Questions & Answers

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