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Support Article

Assembling the EEC-IV Adapter Board

If you haven’t already, please read the ‘disclaimer’ at the top of the parent page here. EEC-IV Adapter Board Assembly Scott Hall’s EEC-IV adapter board kit allows you to install MegaSquirt into virtually any Ford vehicle that uses an EEC-IV computer, without cutting a single wire.  To get started, you’ll need both the kit and a…

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Support Article

How to MegaSquirt Your V6 Powered Ford Probe GT or Mazda MX-6/MX-3

Using the stock distributor, wasted spark, or coil on plug Looking for the easiest way to do this? We now have a MSPNP option, currently available for 1993-1995 models. This ECU comes fully assembled and ready to plug into the stock wiring. See this link for how to install a MSPNP in these cars. To…

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Corey Stephens Nitrous Fox Body Mustang running MS3Pro EFI hanging the front tires
Support Article

How to MegaSquirt Your Fox Body Mustang 5.0

  MSPNP Plug-N-Play Standalone ECU for your Ford Mustang — Get your 86-93 Fox Body Mustang or SN95 Mustang GT / LX up and running in minutes! Now Available:  MSPNP Gen2 and MS3Pro PNP for the 1986-1993 5.0 Fox Body Mustangs and MSPNP Gen2 and MS3Pro PNP for 1994-1995 SN95 Mustangs! These are fully loaded…

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Jay Brown's 1969 Mustang "Shelby Clone" at the 2015 Hot Rod Drag Week
Success Story

Jay Brown’s 1969 Mustang “Shelby Clone”

Congrats to DIYAutotune.com customer Jay Brown from Minneapolis, MN for making the cover of Mustang Monthly magazine!   MS3X handles the electronics chores in this 8 second, All-Motor-Monster. 3 time Drag Week class champion and nothing more needs to be said about the uniqueness of his builds. 585cid SOHC Ford 992hp Running MS3X 2015 Drag…

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Support Article

Application Docs

How to jumper and configure your DIYPNP to get your car fired up on the first try This list of Application Documentation articles covers how to install and configure your DIYPNP MegaSquirt engine management system.   DIYPNP Documentation for 1987-1992 BMW 325 DIYPNP Documentation for 1988 – 1991 Chevy TBI V8 DIYPNP Documentation for 1988…

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Support Article

MegaSquirt Technical Help For Installing EFI/EMS Systems

All of the following information is provided in the hopes that others’ efforts can be of benefit to you in your install. We do not have one of each type of vehicle mentioned here, therefore no first hand experience with most of these to confirm each of them.  This information is to help point you in the…

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Support Article

Installation Articles

MegaSquirt Technical Help For Installing EFI/EMS Systems All of the following information is provided in the hopes that other’s efforts can be of benefit to you in your install.  I don’t have one of each type of vehicle mentioned here so I don’t have first hand experience with most of these to confirm each of…

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Using Dual/Twin Fuel Pumps for Capacity or Redundancy
Support Article

The EFI Tuners Guide Chapter 5A -The EFI Fuel System: Overview

An overview of the EFI Fuel System and it’s major components, discussing fuel tanks and cells, fuel pumps, filters, regulators, etc. A high level of how to design a complete fuel system for a vehicle with Electronic Fuel Injection/EFI.

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James 'Doc' McEntire's Drag Week Champion 1967 Camaro running MS3Pro - Burnout time!
Support Article

The EFI Tuners Guide Chapter 1 – Why should you convert to Electronic Fuel Injection?

Updated September 2022 by Jerry Hoffmann Chapter 1 – Why should you convert to Electronic Fuel Injection? “EFI is more user-friendly than carburetion and will help the more novice tuners. They can perfect the combo on the dyno, then the EFI will self-correct for atmospheric conditions. After a short learning curve, EFI actually levels the…

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Support Article

Carb to EFI: Other ignition control alternatives

Objective of this Article In Part 2 of this article, we covered how to take control over the ignition on our 1977 Chevy Nova. We opted to get a HEI distributor out of a van in the local junkyard. This is a pretty straightforward option if you’ve got a Chevy V8. But what if you…

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