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…

How to MegaSquirt Your TPI or TBI Chevy Small-Block V8 or V6

Engines covered: Pre-Optispark small block Chevy V8s with TPI or TBI injection and HEI ignition with electronic spark timing (seven or eight pin HEI module) Much of this article will apply to other 1980s era GM cars including injected big blocks and even fire V6s. TPI and TBI The Tuned Port Injection and Throttle Body…

How to MegaSquirt Your Chevy LT1, LT4 or L99 with Opti-Spark Ignition

Using MegaSquirt ECUs with the Optispark Ignition System   Introduction MS3Pro wiring Internal mods for V3.0 and V3.57 MegaSquirts Wiring for V3.0 and V3.57 MegaSquirts Other ECU functions TunerStudio settings Suggested parts Thanks to “Mobythevan” on hybridz.org for his notes on the settings for MS2! Application(s): All Chevrolet LT1, LT4, and L99 engines with the…

How to MegaSquirt Your Nissan 280ZX Turbo

Directly driving the coil with the MegaSquirt-I PCB 3.0 and MSnS-E 024s9 or later or the MegaSquirt-II Application: 1982-1983 280ZX Turbo, or conversions using the 82-83 turbo distributor   Updated 10/20/2020 – link to HybridZ.org changed These same modifications work for the ’84-’89 300ZX, both turbo and non turbo. Level of control:  Full Standalone EMS–…

Technical Articles

Disclaimer: The information provided on this page is intended as a guide and reference. Given the complexities involved with electronics, computers, and automotive systems, it is crucial to conduct thorough research and planning before proceeding. We do not assume responsibility for any actions taken or their outcomes, whether based on the information provided or otherwise.…

MegaSquirt Wiring Bundle – 8′ Long

SKU: LG-WireBund

MegaSquirt Wiring Bundle 8′ TXL wire, color coded with labeling printed on the wire every 3 inches — no paper tags here! IAC and Ignition wires are included for MS-I / MS-2 use (or MS-3 Primary Harness use) Shielded Ignition input wire Great for building up your own wiring harness, or wiring up your relay…

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About Us

Welcome to DIYAutoTune.com, the retail store for our in-house brands AMP EFI, Digital Dash EFI, and MaxSpark, proudly supporting the MegaSquirt community. Based in Gainesville, GA, we manufacture all our products in the USA at our facility. Our mission is to be your ultimate destination for all your racing engine management and display needs, offering…

MegaSquirt-III MS3X Expansion Card & Connector Kit

SKU: MS3Xpander

Put this small circuit board in your MegaSquirt-III to unlock its full potential! This board installs in the MS3 case with no soldering; just connect it with the included ribbon cables. Install the MS3X board to add this whole list of inputs and outputs to the MS3 ECU: 8 Sequential fuel injection outputs. Each can…

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Hall Effect Tabbed Mount Crank/Cam Position Sensor

SKU: HallSensor

The Crank Position Sensor with Hall Effect technology is designed for precise measurement of crankshaft position and speed. Ideal for various engine management systems, this sensor provides essential data to your ECU for accurate timing and performance optimization. Features: Hall Effect Technology: Provides accurate crankshaft position and speed data Tab Mount Design: Facilitates easy and…

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Join our Lambda Cult

Join us on a journey into the realm of Lambda-based engine tuning with the expertise of returning contributor Greg Banish. In this article, Greg unveils the simplicity and efficiency of using Lambda ratios for precise fuel corrections. Learn how a universal reference point eliminates the need for memorizing stoichiometric values and discover the advantages of a Lambda-based mindset. Dive into wideband sensor setups and gain insights that will revolutionize your approach to engine tuning. Buckle up as we explore the science behind optimal engine performance with Greg Banish leading the way.