Megasquirt manuals at this covers the ms1extra code, ms2 extra code, and ms3. The conversion from volts to steps is done by the analogtodigital converter adc. Generally, we recommend using ms2 with the latest ms2 extra code to fire wasted spark coils directly. Microsquirt hardware manual megasquirt 2 product range ms2 extra 3. The data rate is displayed at the top of the realtime data view for reference. Manuals for microsquirt transmission control and microsquirtio box are available through their product pages.
Megasquirt 2 gives many options, but most will require diy customization by the end user or builder. Microsquirt can bus is on its 35 pins connector while megasquirt ms2 extra can bus is on the 40 pins male connector shown here below and on the db37 connector available on its wiring. Weve found ms2 extra to work great at decoding ford trigger wheels, and you wont have to add any external modules. This msq file is symtech labs recommended starting point for tuning your 2. This is an extension of the base code, adding many of the much needed ms1 extra features to the msii chip. Megasquirt2 with extra code, for vr crank sensor and tacho output. For megasquirt 2 ms2, microsquirt, mspnp2 ecus and plugnplay ecus based on the microsquirtmodule. Microsquirt has a flexible triggering input, it can be triggered from a distributor or a. Megasquirt is the premier doityourself efi controller.
In the most extreme case, running against ms2 extra, the wifi adapter delivers around 45 per second whereas the bluetooth adapter only delivers around 6 per second. If youre assembling your megasquirt ii from a kit part. For direct coil control nonedis the megasquirt 1 v3. What is msextra in terms of ms manuals and instructions compared to. The extra power and ground layers provide noise immunity in the harsh automotive environment. How to megasquirt your tpi or tbi chevy smallblock v8 or. You can check the tuning section of this manual for the details of how pressure varies with elevation. Manuals are available to download as pdfs or to view online page by page in your webbrowser. To use the ignition control and iac control functions of megasquirt ii on a v2. For the version covered in the ms2 extra manual, see this write up instead.
Ms2 extra megasquirt 2 universal engine management system. When you arent sure, a search of the manual, andor a quick look through. Think of this as your arduino of the megasquirt world, the gpio board has example software code available for you to build practically anything, and by communicating with ms2 or ms3 using canbus there are hundreds of realtime variables you can capture from megasquirt for your own use. Working with msq files tunerstudio maps tunerstudio stores the information from megasquirt in msq files. I keep seeing forums saying to use msextra instead of the megamanual, but i got the manual from msextra. Using the megasquirt i ms1 extra this is a straightforward option with a v3. Microsquirt, diypnp, mspnp2, microsquirtmodule manuals manuals for ms2 extra. There are two fuel injector outputs so the system is batchfired which is perfect for many applications where sequential fuel is not a requirement. For ms1 extra both bluetooth and wifi deliver around 12 lines per second. This is the index to the megasquirt manuals and other documentation for megasquirt.
Much of the tuning interface is very similar to the megasquirt 3. You can find indepth information on tuning megasquirt in the ms2 extra manuals, available online at msextra. It is therefore necessary to load the megasquirt and spark extra msnse firmware. Jimstim the megasquirt stim with a wheel simulator overview this is a new version of the stimulator originally designed by james murray jsmcortina on the forums that expands on the original stims features. Megasquirt is a reprogrammable diy ecu engine control unit which is a great tool if you want to learn about engine control systems, you can buy in kit form and assemble yourself, all instructions are available in the online manuals as you are aware if you modify your engine by. If you are looking for a straightforward aftermarket engine controller with a standard set of features the ms2 is an excellent choice. This version of the documentation applies to the megasquirt 2 range of products which includes. Ms2extra nitrous control is a bit more active and allows the diypnp to turn on the nitrous output. At its core, the mspnp2 uses a microsquirt module running ms2extra firmware, combined with extension boards designed by. Jimstim the megasquirt stim with a wheel simulator. To use a megasquirt controller with an air cooled engine, you will have to decide where the best place is for the coolant sensor. Megasquirt ms2 extra microsquirt 2 wiring connection megasquirt ms2 extra and microsquirt ecus feature a bus communication protocol based on can.
As expected megasquirt 1 lacks many of the features of the newer ecus. More information about megasquirt can be found in diyautotunes thorough f. Plus, you can set the rev limit wherever you like and use a spark cut rev limiter. For more information on nitrous, see the ms2 extra manual.
Whether you are looking to gain indebt knowledge of efi by building a full featured ecu on your own, or simply want to save money building a proven reliable kit, from megasquirt origins the diy spirit is available in partial and complete kits. Exercise extra caution when soldering the yellow wire to the ms2 card a fine wire and fine soldering iron tip are needed. This manual covers microsquirt specific installation details and should be used in conjunction with the general setting up and tunerstudio reference manuals. Subjects covered include assembly, firmware, and tuning. If you are using an msi, see the msns extra software manual for instructions on low to load the latest version of msi extra. The assembly, testing, and installation of megasquirt is covered at those sites. Megasquirt manuals index for megasquirt1, megasquirt2, microsquirt. Weve taken the awesome capability of the microsquirt module, combined with the ms2 extra firmware, and built out a mainboard that adds a very nice featureset including pretty much everything we get asked about on a daily basis by our customers. How to megasquirt your modular motor powered mustang. Megasquirt 1 offers a cost effective entry level to the aftermarket ecu market. Microsquirt hardware manual megasquirt efi pdf4pro. Megasquirt 2 setting up megasquirt 2 product range ms2 extra 3. For msii users,see the ms2 extra software manual for installation instructions for the latest version of ms2 extra.
In order to better support the megasquirt ii processor, the megasquirt printed circuit board has been updated. Disconnect the ignition coils from the harness before proceeding. Dont bother following the instructions on the above websites to configure the megasquirt to your. The link immediately below is a quick link to the 420a modification information. Megasquirt downloads firmware and software megasquirt efi. Megasquirtii advanced electronic fuel injection computer. The microsquirt is a compact ecu based on megasquirt2 technology. Turbo, supercharged, or na the megasquirt can handle your fueling needs. Manuals for megasquirt2, microsquirt, ms2, diypnp, mspnp2 and microsquirtmodule based ecus 3.
These are the most popular code options, with the most features and easiest usability. Ms2 build project megasquirt from extra efi your project. Never try to paste solder on a joint using excess solder on the tip. For the megasquirt frequently asked questions and answers, click here. The pcb is a single, four layer two signal layers, a power layer, and a ground layer board. This certainly applies to the hc08 modules and i will test the hm10 module, hopefully, in the next couple of evenings to see if that has the same limitation. Megasquirt manuals at this covers the ms1extra code, ms2extra code, and ms3. Enhancements include wide support for oem crankcam wheels, wasted spark and cop ignition, closed loop idle, eae, boost control, nitrous control and many other features. Oct 17, 2019 a later vag 2coil oem part number 032905106b is what phil recommended as it has built in drivers putting less extra circuits into the ms2. Ms2 extra firmware if using the the trim tables, you can autotune the 14 trim tables.
The ecus include a wiring harness, rs232 communication cable and. You can find indepth information on tuning megasquirt in the ms2 extra manuals, available online at. Up to 4 cylinder sequential fuel and 6 cylinder coilonplug are supported, various race features and can communications. This manual is updated frequently, and contains the latest information on assembling, testing, troubleshooting, installing, and tuning your megasquirt efi controller from bowling and grippo.
Ms2 extra nitrous control is a bit more active and allows the diypnp to turn on the nitrous output. I have been using the megamanual from the msextra website, and the megasquirt assembly guide. Ms2 extra documentation tuning guide for using the ms extra firmware with the ms2 processor, as well as 420aspecific hardware modification information. Megasquirt ii reads this voltage as a series of voltage steps. Aug, 2019 for ms2 and ms2 extra this is an issue as the data pages that the app loads at startup are 1024 bytes each. Now theres also sequential fueling for ms2 extra, semisequential for up to 12cy engines and fully sequential for up to 4cy engines, this allows the ms2 to compete against ecus that are 5 to 10 times the price of an ms2 extra.
Use the nitrous 12 volt input with the out wired to your chosen input port adc1, adc2, or flex and wire pt6 stage 1 and pt7 stage 2, if used to the relay control outputs. To learn more about megasquirt efi controller, go to the megasquirt faqand manual. Using trim table autotune using 2 to 8 ego sensors on ms3, trim table autotune will tune your the trim tables for each cylinder to insure that you are getting the most from every cylinder. For more information on nitrous, see the ms2extra manual. How to megasquirt your tpi or tbi chevy smallblock v8 or v6. The value we enter here will be a static value that our megasquirt will use to command ignition timing. Here are the megasquirt ii schematics for the v2 blue pcb c64 w can megasquirt iis. Megasquirt 2, ms2, microsquirt, diypnp, mspnp2, microsquirtmodule manuals manuals for ms2 extra. The ecus include a wiring harness, rs232 communication cable and the relevant software drawings, etc. A1 b6 c5 d4 e3 f2 ill update as things advance, but overall im quite impressed with the. Megasquirt2 setting up megasquirt efi fuel injection. The ms2 has a trim table for fuel on each injector output up to 4 allowing very high accuracy on most engines. The bim012mega is designed to decode the information provided by the megasquirt 2, microsquirt, mspnp2, microsquirtmodule based ecus with firmware ms2 extra 3.
This will tell the megasquirt to ignore our ignition table and hold a fixed advance. Xtau enrichment additional fuelnitrous n2o enrichments 2. The ignition control wire should be hooked to the 5 th pin on the jp1 header the row of closely spaced holes beside the cpu socket, near the notice. Megasquirt ii is an addon option for a standard megasquirt controller. The first thing to note is that the circuit has been updated based on operational.
Ms2 extra changed the landscape for the doityourself, hardcore hobbyist racer providing an affordable engine management system built to support all facets of competitive racing. Microsquirt hardware manual megasquirt2 product range ms2extra 3. Megasquirt pnp gen2 manual megasquirtpnp by diyautotune. Msii users should see the ms2 extra software manual for installation instructions for the latest version of ms2 extra.
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