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Vivid Racing Gear 
DIYAutoTune CEO Jerry Hoffmann and Lead Engineer Matt Cramer explain practically everything you need to know about EFI in their illustrated book, Performance Fuel Injection Systems. Hoffmann and Cramer cover what you need to know about EFI system selection, installation options and tuning, including:
Details:
- Must Have tools for working with electronics
- How to build an exceptional wiring harness
- Selection guide for choosing injectors, throttle bodies, fuel pumps, and other EFI system components
- A comparison of various standalone EFI systems currently on the market
- Dyno tuning and other tuning methods
- Piggyback devices
- Chips and stock ECU hacks
- An Entire Chapter on Troubleshooting EFI installations
Our approach to EFI systems and tuning was a purely practical angle, leaving out some of the super technical details that may tend to bog some down, and just trying to write about what the reader would need to know to make their project a success. We cover all the basics, and then dive into tuning on the track and on the dyno, with very practical how to tune type walkthroughs (fuel and ignition timing) to help the reader understand the process and remove the mystery.
We also cover some common, and not-so-common troubleshooting scenarios and finish with case studies of customer cars, demonstrating some of the unique issues and questions one might need to overcome and answer.
Performance Fuel Injection Systems is not a MegaSquirt-specific book but does speak from our experience.
Many of the tuning software screenshots and other references/images will be Highly recommended for anyone diving into a MegaSquirt project, and highly educational for someone diving into Any EFI project. If you're doing a MegaSquirt project, Performance Fuel Injection Systems serves as the perfect practical compliment to the product manual.
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
DIYAutoTune is a company that Jerry Hoffmann founded in 2004. What started as a hobby became a booming business. The company specializes in producing the latest tuning products and kits. Today, they have become one of the leading companies in their market segment.
EMS ExpertThey have everything you need to install a fully programmable Engine Management System on any vehicle, whether a truck, car, motorcycle, utility vehicle or even boat. The company offers various tuning products from the MegaSquirt line of DIY Programmable Electronic Fuel Injection systems, MegaSquirt wiring harness, Innovate Motorsports LC-1, and LM-1 Wideband O2 Sensor systems and gauges, and ignition components.
Wide Range of ProductsWhen it comes to Engine Management systems, DIY AutoTune is the brand to go to. They also have ready-to-install kits for enthusiasts who want a plug-and-play product. Whatever route you choose, they guarantee to provide total control and tunability of your engine, allowing you to extract maximum power every time.
Purchase DIY AutoTune At Vivid RacingToday’s modern engine requires special equipment for you to tune it base on your liking. If you are in the market for a product that would allow you to be in control, then look no further as DIY AutoTune is the brand for you. All their electronics are labeled clearly and have everything you need for the install.
To know more about DIY AutoTune and what they can offer, visit Vivid Racing and check out their list of products that fit your specific requirement.
Warranty Information - DIYAutoTune Un-Assembled Kits
Products purchased in kit form we will guarantee have all parts needed to complete the kit, and the parts will be in new and working condition when we ship them to you. If you find a discrepancy please notify us. We're pretty easy to work with and we'll do our best to take care of you quickly. Obviously we cannot warranty your assembly work of a kit. If you get stuck we suggest posting a thread at www.msefi.com or www.msextra.com and emailing us the link so we can attempt to chime in and working together with others we can usually help you get to the root of your problem. That being said most people don't have any problems assembling our kits, they are clearly labeled and go together just about as easy as any kit could.
Warranty Information - DIYAutoTune Assembled MegaSquirt ECUs and Accessories
This section applies to any product that is available as a kit, but that we also offer as an assembled product. Examples would be standard MegaSquirt I and II ECUs, Stimulators, and the like. Standard off-the-shelf MegaSquirt ECU Assembled units are covered by a one year limited warranty against manufacturers defects. Contact us if you believe you have an issue that should be covered under warranty. We will discuss the issue with you and provide an RMA number and an address to ship your unit to. Our tech will evaluate the unit and if a problem due to manufacturer defect is found we will repair it free of charge. We will cover the cost of shipping from our shop to you up to $25; we will need for you to cover any cost of shipping beyond $25 and the cost of shipping the unit from your location to our shop. If we determine that the problem was due to mis-use, mis-installation or improper modification, our shop rate will be $75/hr plus materials to repair your unit (one hour minimum).
We do not mind the modification of the unit as that's the spirit of the MegaSquirt project, just understand that if your mod appears to be the likely culprit of damage to the unit that we cannot support the unit under warranty. Note that extensive modification may complicate the troubleshooting process, and in some cases it may be neccesary to reverse modifications in order to return the unit to working order. Charges will apply for the time required, and in these case we cannot be responsible for putting custom modifications back in place after having to remove them to resolve a problem.
Warranty Information - Manufactured Products
General Indemnity
Race parts are inherently dangerous in general and may cause injury or damage if improperly modified or altered before use. Hoffmann Innovations will not be held liable for and will not pay you for any injuries or damage caused by misuse, modification, redesign, or alternation of any of our products. Hoffmann Innovations will not be held in any way responsible for any incidental or consequential damages including direct or indirect labor, towing, lodging, garage, repair, medical, or legal expense in any way attributable to the use of any item in our catalog or to the delay or inconvenience caused by the necessity of replacing or repairing any such item.
Manufacturers warranties are standard with some of our products. For example:
All Innovate Motorsports wideband products are covered by a 1-year limited manufacturer's warranty covering parts and labor for repairs of any manufacturer defect. They are good people to work with and will take good care of you and we will help ensure you are taken care of.
AMP EFI, MS3Pro, MS3Pro Plug & Play and MSPNP2 EMS Systems are covered by a 1-year limited manufacturer's warranty covering parts and labor for repairs of any manufacturer defect for the original purchaser. Furthermore, original purchasers of AMP EFI models MS3Pro ULTIMATE & EVO may upgrade, by way of online product registration, to a Limited Lifetime Warranty within 30 days of purchase. Please visit https://www.ampefi.com/warranty/ for details & product registration.
Other manufactured products (fuel pumps, etc) have warranty information included in the product listing.
Products purchased in kit form we will guarantee have all parts needed to complete the kit, and the parts will be in new and working condition when we ship them to you. If you find a discrepancy please notify us. We're pretty easy to work with and we'll do our best to take care of you quickly. Obviously we cannot warranty your assembly work of a kit. If you get stuck we suggest posting a thread at www.msefi.com or www.msextra.com and emailing us the link so we can attempt to chime in and working together with others we can usually help you get to the root of your problem. That being said most people don't have any problems assembling our kits, they are clearly labeled and go together just about as easy as any kit could.
Warranty Information - DIYAutoTune Assembled MegaSquirt ECUs and Accessories
This section applies to any product that is available as a kit, but that we also offer as an assembled product. Examples would be standard MegaSquirt I and II ECUs, Stimulators, and the like. Standard off-the-shelf MegaSquirt ECU Assembled units are covered by a one year limited warranty against manufacturers defects. Contact us if you believe you have an issue that should be covered under warranty. We will discuss the issue with you and provide an RMA number and an address to ship your unit to. Our tech will evaluate the unit and if a problem due to manufacturer defect is found we will repair it free of charge. We will cover the cost of shipping from our shop to you up to $25; we will need for you to cover any cost of shipping beyond $25 and the cost of shipping the unit from your location to our shop. If we determine that the problem was due to mis-use, mis-installation or improper modification, our shop rate will be $75/hr plus materials to repair your unit (one hour minimum).
We do not mind the modification of the unit as that's the spirit of the MegaSquirt project, just understand that if your mod appears to be the likely culprit of damage to the unit that we cannot support the unit under warranty. Note that extensive modification may complicate the troubleshooting process, and in some cases it may be neccesary to reverse modifications in order to return the unit to working order. Charges will apply for the time required, and in these case we cannot be responsible for putting custom modifications back in place after having to remove them to resolve a problem.
Warranty Information - Manufactured Products
General Indemnity
Race parts are inherently dangerous in general and may cause injury or damage if improperly modified or altered before use. Hoffmann Innovations will not be held liable for and will not pay you for any injuries or damage caused by misuse, modification, redesign, or alternation of any of our products. Hoffmann Innovations will not be held in any way responsible for any incidental or consequential damages including direct or indirect labor, towing, lodging, garage, repair, medical, or legal expense in any way attributable to the use of any item in our catalog or to the delay or inconvenience caused by the necessity of replacing or repairing any such item.
Manufacturers warranties are standard with some of our products. For example:
All Innovate Motorsports wideband products are covered by a 1-year limited manufacturer's warranty covering parts and labor for repairs of any manufacturer defect. They are good people to work with and will take good care of you and we will help ensure you are taken care of.
AMP EFI, MS3Pro, MS3Pro Plug & Play and MSPNP2 EMS Systems are covered by a 1-year limited manufacturer's warranty covering parts and labor for repairs of any manufacturer defect for the original purchaser. Furthermore, original purchasers of AMP EFI models MS3Pro ULTIMATE & EVO may upgrade, by way of online product registration, to a Limited Lifetime Warranty within 30 days of purchase. Please visit https://www.ampefi.com/warranty/ for details & product registration.
Other manufactured products (fuel pumps, etc) have warranty information included in the product listing.
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