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 them. This information is here to help point you in the right direction to get your car Megasquirt’d. As the MegaSquirt is a Do-It-Yourself engine management system I encourage you to take your time, do your research, and take responsibility for your installation and tuning.
Some of the articles may have base tuning maps available as well — it is important that you make sure you understand that often these maps will only work with the same version of firmware and MegaTune they were built on. You can manually transition the settings over into a new firmware of version of MegaTune but simply loading the .msq into a different version than they were built on can have unpredictable results. Also — just because a map was built on a car just like yours doesn’t mean you should load the map on your car and go for some WOT runs– take the time and be responsible for your own tune, make sure it works right on YOUR car, make sure the timing and AFR’s are right. Consider these ‘base maps’ and NOT final products.
Sorry for the disclaimer… but you gotta understand in this age of hyper-active legal action combined with a lack of personal responsibility 😉
Tech Article Series Spotlight: The EFI Tuners Guide
You don’t want to miss this new article series! Whether you’re new to Electronic Fuel Injection and Ignition or if you’ve already done this before, we think you’ll find something to love in this series written by founder Jerry Hoffmann. From the initial decision to take control of your Fuel Injection/Ignition System to the planning, installation, configuration, and tuning process… we’re getting into all of it. Check it out!
The EFI Tuners Guide – Learn How Electronic Fuel Injection and Ignition Systems Work!
DIYAutoTune.com MegaSquirt Install Articles
These are articles written and hosted here, still not always from first hand experience but often from information gathered with the help of others with first hand experience. Credit is of course given in the articles to those who helped me bring it all together. These are ‘living’ documents that will be updated over time, if you see changes that need to be made please call them out to me!
Note: For DIYPNP installs, see the DIYPNP Models page.
BMW
Chevrolet / GM
- LS Central – MegaSquirt for the LS1 and related motors — An entire section of articles on the latest GM V8!
- How to MegaSquirt your LT1, LT4, or L99 Camaro, Trans Am or Corvette
- How to MegaSquirt your TPI or TBI Chevy Smallblock V8 or V6 — Camaro / Firebird / Corvette / S10 / most any TPI/TBI GM cars…here’s what you need!
- Carb-To-EFI Conversion: One Step at a Time – 1977 Chevy Nova with SBC 350
Chrysler / Dodge
- How to MegaSquirt your New Hemi Introduced in the 2003 models, this is a very popular swap into older muscle cars. MS3 lets you swap one of these engines in without worrying about how to transplant a stock ECU into a classic muscle car.
- How to MegaSquirt your Chrysler, Dodge, or Mitsubishi 3.0 SOHC As used in the Daytona, LeBaron, Shadow, and more.
- How to MegaSquirt your Neon, Cloud Car, or PT Cruiser Covers both first and second generation Neons.
DSM
- 4G63 Turbo DSMs! How to MegaSquirt your 4g63 powered DSM – Eclipse, Talon, Laser, Galant VR4
- How to MegaSquirt your Mitsubishi 4G37
- How to MegaSquirt your 420A powered DSM
Ford
- Ford Probe GT from 1993-1997
- Ford 5.0 Mustangs from 1986 – 1995 — How to MegaSquirt your 5.0 Mustang! Covers wire-in installations.
- Ford 4.6 Mustangs from 1996 – 2004 – This writeup also works for other modular motor V8 applications, including trucks, Lincolns, SVT Lightning, Crown Victorias, and Thunderbirds!
- Ford Zetec – MegaSquirt your Focus, Escort, Contour, Mondeo, or use this to wire up your Zetec powered kit car!
Honda
- How to MegaSquirt your 1992-2002 Honda or Acura! Many, many models covered here.
Mazda
- Mazda RX-7 from 1986 to 1991 Control the rotary ignition with no changes to the stock sensors! Can also be used to swap the FC ignition onto ’85 and earlier cars.
- Mazda Miatas from 1990-1997 Many Miata owners have been using our DSM article for this with success as it’s very similar, but here’s one customized just for you guys! (Major Updates!)
- Mazda MX6 or 626 from 1993-1997 (V6 Engines Only)
Mitsubishi
- 4G63 Turbo DSMs! How to MegaSquirt your 4g63 powered DSM – Eclipse, Talon, Laser, Galant VR4
- How to MegaSquirt your Mitsubishi 4G37
- How to MegaSquirt your Mitsubishi 3.0 SOHC
- How to MegaSquirt your 420A powered DSM
Mopar (old school)
- How to control the ignition on your vintage Mopar engine Matt Cramer (owner of a turbocharged and MS’d Dodge Dart) pours out some of his Mopar and MegaSquirt knowledge for us all! This article covers ignition control of vintage Mopars. You’ll still have some other work to do if you want to convert to EFI as well… You can always do one and then the other using the same MS…
Nissan / Datsun
- How to MegaSquirt your Nissan 240sx MegaSquirt your KA Powered S13 or S14, or use this article for your KA Pickup as well!
- How to MegaSquirt your 1982-1983 280ZX Turbo Also covers the ’84-89 300ZX.
- How to MegaSquirt your Nissan Skyline RB25DET Also works for RB20DET and RB26DETT. Or use this for your 240SX engine swap.
- How to MegaSquirt your Nissan 300ZX VG30DETT or VG30DE MegaSquirt for the Z32 cars using all stock ignition!
Subaru
- How to MegaSquirt your 1987 Subaru RX Turbo! Written up as an addition to a SubieSport article in the April 06 magazine — everything you need to know for a plug-n-play installation!
Toyota
- How to MegaSquirt your 4AGE / 4AGTE Powered Toyota (MR2, AE86 and AE92 Corolla) Covering Plug-N-Play setups using the MS-I PCB2.2 or PCB3.0 with the MSnS_E firmware, AND using the MegaSquirt-II!
- How to MegaSquirt your 22RE or 22RTE powered Toyota! Thanks to Darin Ginther for this excellent writeup that I’m sure will help many of you get those 22R’s ‘squirted!
- How to MegaSquirt your Toyota Supra Mk IV and other 2JZ-GTE applications Covers how to run these engines with anything from a MicroSquirt to an MS3Pro Ultimate.
Volkswagen
- How to MegaSquirt your water cooled VW – Covers the 8V and 16V inline fours.
Volvo
- How to MegaSquirt your Volvo 240 / 740 / 940 – Covers models with Bosch LH2.2 ignition system.
MegaSquirt Support And Information
Articles found throughout the Web:
Not written/hosted by DIYAutoTune.com
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- 1962 Corvair – Carb-to-EFI highlights
- Ford Windsor Carb-to-EFI conversion (relevant to any V8 EFI conversion really)
- BMW 2002 (1973) – Carb to EFI Conversion using MegaSquirt
- DSM — Second Gen Non-Turbo – Covers tapping into existing harness for fuel control. Factory ECU controls timing.
- DSM — 4g63 Powered – Full fuel and ignition control a la MSnS-E!
- Mazda MX-6 / Ford Probe – Covering the ’88-’92 models with the F2T turbo motor.
- Mazda RX7 – Muythaibxr is the authority on MegaSquirt conversions on the RX7; here is his FAQ. This is a part of a Megasquirt subforum on RX7Club.
- Mazda RX7 – Aaron Cake has a very in-depth writeup on his home page for how to make the MegaSquirt work with the RX7. Covers both MegaSquirt I and II.
- Mercedes-Benz M110 – Installing a GM TBI on a carbureted motor.
- Also see his article on a Mercedes-Benz M115.
- Mercedes-Benz 280SL (1985) – Detailed K-Jetronic to EFI conversion.
- Mercedes-Benz 450SLC (1980) – Converting from the mechanical K-Jetronic to a Megasquirt
- MGB Write-ups:
- Ford TFI – This used to point to a page that generically covered the Ford TFI ignition system with the MS-I and MSNS_E ignition system, that page is gone now. Check out my How to MegaSquirt your Mustang page for good info that really applies to all TFI based ignition systems using the grey TFI module.
- Toyota Corolla (AE86) (1987) – Full replacement of factory ECU using MSnS-E to control fuel and spark
- Toyota RAV4 – The same James L. who brought you the MR2 writeup tackles a 3S-FE RA4. Includes DIYPNP and regular MS2 information.
- Triumph Spitfire with GT6 swap (1975) – Carb to EFI swap along with a wasted spark ignition conversion
- Volkswagen – I’ve got two threads for you to check out here with tons of information
- Volvos – You’ll find more Megasquirt writeups at www.VolvoSpeed.com — just search for ‘MegaSquirt’ on the message board.
More to come! If you’ve got documentation you’d like to see posted here drop me an email to let me know!
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DIYAutoTune is a MegaSquirt EMS/EFI manufacturing and distribution company.