If your car's air conditioner is no longer cooling the air as it should, low refrigerant levels due to a slow leak are usually the problem. This is especially a possibility if the air has gradually gotten warmer over a few weeks or if you're turning your A/C back on after not using it over the winter.
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- MS3Pro & Plug-Play Solutions
- MS3Pro Family by AMP EFI
- MS3Pro Plug & Play
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New to Fuel Injecton?
Grab a copy of Performance Fuel Injection Systems written by DIYAutoTune's own Matt Cramer & Jerry Hoffmann to learn how Electronic Fuel Injecton (EFI) works and how to install and tune an EFI system.
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Click Here For HelpNote — these are here to help guide you and provide information. As with anything involving electronics, computers, and cars bad things can happen without proper research and planning. Do your homework. We cannot be responsible for any of your actions or their results whether based on this information or not. Be smart, and be safe… and for goodness sake, don't blow your car up!
MS3 and MS3Pro Failsafe Features
A Look Inside MS3Pro Ultimate's Programmable Peak & Hold Injector Driver
From DIY Plug-n-Play setups to starting from scratch to build your own harness, and from factory EFI conversions to MegaSquirt to carb-to-EFI conversions. These articles are being gathered from around the web to give examples of how people are implementing the MegaSquirt ECU on various vehicles. Some contain very detailed technical information and wiring diagrams, some are more general in nature. If you know of an article that should be featured here email me a link at websales@diyautotune.com.
Documentation for current DIYAutoTune Hardware
Here you will find manuals for devices which were either designed by DIYAutoTune.com or are not official Bowling & Grippo products, not covered on the MegaSquirt documentation. These are supported through DIYAutoTune.com directly.
- CAN-EGT 8 channel EGT module
Legacy DIYAutoTune hardware documentation
These items are no longer in production.
- GM TBI adapter board for 746/747 series ECUs
- GM TPI adapter board for 165 series ECUs
- MegaEFI adapter board for EEC-IV Fords
We no longer actively support the MS1-based eMS-Pro except for original purchasers of units bought through DIYAutoTune (be sure to have your receipt information ready before contacting us). For eMS-Pro tuning, also see the MS1/Extra documentation.
- eMS-Pro Installation Guide (PDF)
- eMS-Pro Tuning Guide (PDF)
Installation and Wiring
Tuning and Settings
- Tuning Pre-Fundamentals [Coming soon]
Internal ECU features and troubleshooting
Accessories
Project car archives
These installations do not always use current parts, firmware, or settings.
Diy Tune Up Auto Ac Systems Diagram
- Carb-To-EFI Conversion: One Step at a Time – 1977 Chevy Nova with SBC 350
Customer submitted tech articles
Tips, tricks, and cool installations sent to us by our customers.
Other articles we found on the web you might find interesting
Want to learn more about Engine Management Systems and Tuning?
Pick up a copy of Performance Fuel Injection Systems by our own Matt Cramer & Jerry Hoffmann.