Diyautotune who retail the megasquirt ecus sell a range of diybob diy breakoutboard adapters that look to fulfill the same purpose, though i havent. Using the megasquirt ii pcbv3 with the factory tfi ignition such as the 8795 mustang ignition wiring. If that needs to be wired up in pin 36 instead, then i definitely have it wrong and the harness was a bought harness from ms with wire tubing etc just to wire all the injectorssensors etc. Finally, the connector for the megasquirt is a typical db 37 dc 37, whatever which are made for soldering 20 gauge wires to. Optionally, to create the smallest wiring harness possible, the db37. Cam crank wheel decoding for a stack of different ignition system trigger wheels. 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. Pin 36 on msii db37, spout to tfi module using the megasquirtii pcbv3 with a msd 6a ignition box on a tfi vehicle such as the 8795 mustang ignition wiring. Instead of hacking up the engine loom, i hacked up a na gto ecu i had left over from my tt conversion, pirated the female connector out of it, and wired the ms 37 pin connectors to that. Wiring, installation and tuning services are also available on site upon request. Megasquirt ii spare port configuration the general purpose io logic in megasquirt ii code version 2. Includes proper female db37 and db15 connectors and shells for building your wiring harness.
Cable wiring instructions for megasquirt ecu to relay board. So these microsquirt pins, when used as spare ports, are capable of driving. Pin 37 on the ecu currently isnt grounding the second fuel pump relay pin 85, when measured with a multimeter that pin on the relay85 gets 12v at ignition on and the pin on the ecu 37 gets no voltage ever. The fuel supply lines for the top of the injectors are the same size. Megasquirt first evolved from a do it yourself project to low cost alternative, to now with ms3 matching or. Currently, palm software does not work with msii, while there are laptop options for both processors.
If you are using a stepper motor iac with the relay board, and have connected the wires for the iac to db37 pins 25, 27, 29, and 31, then. Or if you want to make your own loom as above i sell the db37 pin female solder. This is the one nonplugnplay setup between the 68hc908gp32 processor i. Pin 36 on msii db37, spout to tfi module using the megasquirt ii pcbv3 with a msd 6a ignition box on a tfi vehicle such as the 8795 mustang ignition wiring. Currently the only software fully supporting all versions of megasquirt 1, megasquirt 2 and megasquirt 3, tunerstudio will simplify your megasquirt experience. Configuring megasquirtii or microsquirt tuning software. Aim infotech megasquirt ms2 extra microsquirt release 1. The only added mod is a innovate wb and a iat sensor. Gb, white, ms trigger to pin 24 on db37, or relay board tach terminal. Megalogviewer is the software application used to view datalogs. Megasquirt offers a full range of engine management systems, from singlecylinder up to 16 cylinders and beyond. Oss megasquirt, libreems, jimstim tuning software megatunix is a crossplatform tuning application for some of the available diy fuel injection controllers, including the megasquirt ms1, ms1extra, ms2 and ms2extra as well as the libreems efi system and the jimstim ecu stimulatordevelopment tool. Microsquirt hardware manual megasquirt2 product range ms2extra 3.
Tunerstudio ms brings all the features of tunerstudio to all megasquirt users. All of the gnd pins are connected internally, the wiring here is recommended. Does not apply to other megasquirt products or other firmware versions. Cut and wire this to fuel pump pin 37 output on the ms. Extension of ms2, v8 sequential fuel and spark, many more ios. The megasquirt dashboard, tuning and log viewer application for android. Apr 12, 2018 speed control for a cooling fan controlled by megasquirt using a fan commonly found in most junkyards.
The bottom box is the megasquirt, top box is a cable adapter made from an old eeciv with the ecu removed. The software application you use to tune and configure your megasquirtii or microsquirt is called megatune2. Dec 04, 2007 the 86 blade is 12v switched ignition. Msdroid android tuning for megasquirt 38 photos software. Laptops are not your only option, as there is also software available to tune your megasquirt from many palm handheld devices. If theres a feature you need, chances are ms2 extra can do it. Coolant temp input common ground to box and signal out. I will try swapping the 330k resistor to pin 36 tfi spout to pin 36 ms and see what happens.
To download the latest tunerstudio tuning software click on the link below. Check out the broad offering, there is something for everyone. This tutorial explains how to connect megasquirt ms3 ecu with aim devices. The following pin connections are available within the ecu. Megasquirt support forum msextra pin 37 not grounding. Here below is connector pinout and connection table. However 15 of these pins are internally connected to the. Optionally, to create the smallest wiring harness possible, the db37 connector in a.
It takes the 37 pin dsub connector on the ms to the ford 60pin. I have everything wired the same as before and i am baffled. Since a 18 gauge wire doesnt fit into a 20 gauge hole, i had to trim the wire a little. Just in case you need to know this for a cas install in an nb or for whatever reason, this is the cas pinout. This will tell the megasquirt to ignore our ignition table and hold a fixed advance. Micro usb to serial cable insure reliable connectivity, use a tested cable.
If you do not own at least two fire extinguishers, go buy some right now. I was able to remove 20 wires with thick insulation it was thick enough that aligning the two halves of the tool to go in the pin hole required needle nose pliers at times. When the key was turned on the fuel pump used to run for a split second like it should. Speed control for a cooling fan controlled by megasquirt using a fan commonly found in most junkyards. The latest version for windows, linux, and macintosh can be found at. We recommend using only 5 out of the 15 linked pins available for grounding the megasquirt to the engine. Connection of megasquirt ms2 extra to connect megasquirt ms2 extra to aim devices use the 40 pins connector or the db37 connector available on the ecu wiring. Iac1a db37 pin 25 iac1b db37 pin 27 iac2a db37 pin 29 iac2b db37 pin 31.
You can use the spare ports to drive a transistor that runs a relay, etc. C3 37 fuel pump control, also cut and wire to fp output on ms. Megasquirt2 is a good upgrade path for megasquirt1, and the best choice for a new budgetoriented installation. Microsquirt v3 as shown above running firmware ms2extra 3. Fully plug and play installation no wiring required for basic functionality. The megasquirts db37 main connector has 37 total pins, hence the designation 37 in its name. This value is a static value that the megasquirt will use to command ignition timing. After i stripped the wire, i would snip the end at a sharp angle to create a point and this would fit into the pin hole a bit better. Sep 23, 2018 megasquirt tuning course part 1 duration. Connecting the computer to the megasquirt generally requires only. Corvair electronic fuel injection efi engine control. However 15 of these pins are internally connected to the megasquirts ground plane, and therefor 22 have non ground functions. Pin 37 on the main megasquirt connector will switch off fuel pumps if. Megasquirt 2 is a good upgrade path for megasquirt 1, and the best choice for a new budgetoriented installation.
Megasquirtii spare port configuration the general purpose io logic in megasquirtii code version 2. That was the only option 11 years ago, but i believe they still sell those kits today. If i ground pin 85 on the relay the pump turns on like it should. Updated 32816 latest tuningutility software revisions tunerstudioms is the software application that is used to tune your megasquirt efi controller. Experimentation with efi can be very dangerous because you are playing with high pressure gasoline. On a v3 main board, follow the instructions in the v3 assembly guide. This was me testing and then explaining the wiring and software settings needed. For many just starting out on efi, megasquirt2 is a good entry point, and upgrading later on to megasquirt3 is a simple 5minute hardware swap. How to megasquirt your 3g hemi for a bodies only mopar forum. This site contains all megasquirts ecus and accessories to convert your cars. Get the best deal for megasquirt from the largest online selection at. Using the megasquirtii pcbv3 with the factory tfi ignition such as the 8795 mustang ignition wiring. This is how i have wired up my fuel pump relay but it fails to prime, there is no voltage getting to the connector on the fuel pump, i know the fuel pump is in full.
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