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MegaSquirt 2 Kit - Unassembled with all components
MegaSquirt 2 Kit - Unassembled with all components
MegaSquirt 2 Kit - Unassembled with all components

MegaSquirt-II Programmable EFI System PCB3.0 – Kit

4.8823529411765 out of 5 based on 17 customer ratings
(17 customer reviews)

$324.99

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Add the optional Q16 high current coil driver

Bosch BIP373 Coil Driver Mod Kit

Out of stock

Description

Note:   Now using a brushed silver finish MS3 enclosure, which will help facilitate potential future upgrades from MS2 to MS3 without extra cost! 

MegaSquirt-II Engine Management System with 3.0 main board – Unassembled Kit; Part # MS230-K

The MS230-K kit includes everything you will need to build your MegaSquirt-2. The genuine B&G partial kit with PCB3.0, the Bill Of Materials, the case, pre-machined endplates and heat sink bar, even the tube of heat sink compound and a bit of jumper wire is included. All you add is tools, solder, and time! The only other thing you might need is a tuning cable if you don’t have one already. I have those available as well for a few bucks.

The BIP373 coil driver is sold separately and is only required for direct coil control. If you are using “smart” coils with internal or ignition modules or “dumb” coils with external ignition modules, you do not need any BIP373 drivers.  You only need BIP373 if you have a dumb coil and do not have an ignition module.  

MS230-K Kit Bill Of Materials (BOM) Includes:

  • MS2 daughter card
  • All ‘Basic Components’
  • PWM Flyback Damping Circuit components
  • Hall Sensor/Coil(-) and VR Sensor Ignition Trigger Components
  • Current Limiting Circuit Components

That’s right, everything needed to build this to the standard configuration is included.

The ECU will support up to six spark output channels.

Legend for Kit Labels

The MegaSquirt 2 Standalone EMS is truly a dream ECU computer for the DIYer. This latest rendition can control fuel, ignition, stepper motor IAC, and more for your turbo, supercharged, or naturally aspirated engine. More information about MegaSquirt-II can be found here.

MegaSquirt II includes all of the features and benefits of the original

  • Onboard MAP sensor for NA or boosted engines up to 21psi!
  • Speed density or Alpha-N.
  • Use any injector – High or Low impedance.
  • Compatible with output from narrowband sensors and wideband O2 systems.
  • Log data on your laptop for later analysis.
  • Tuning software is free for download and regularly updated with new features.
  • Source code and hardware information is available online allowing you to customize things beyond the massive feature set already available if you choose.
  • Includes proper female DB37 connector and shell for your wiring harness.

Additional Features with MegaSquirt-II

  • 24 MHz HCS12 processor
  • Fuel control to 1 µsec (100 times more resolution than MegaSquirt-I),
  • Ignition control (full spark timing advance control, dwell control, etc) for one coil/distributor (7 pin HEI for example) and Ford’s EDIS systems,
  • On-board stepper motor driver for IAC stepper control (this requires a few jumpers, included in the kit, to be added on the MegaSquirt PCB to connect the socket jumpers to the DB37 connector),
  • Ford PWM idle valve firmware support,
  • Built-in rev limiter, either ‘fuel cut’ or ‘spark retard’,
  • All tables are now 12×12 in size,
  • WBO2 AFR target table (in AFR units),
  • Independent dual-tables for VE and AFR target,
  • EGO feedback in wide-band mode is proportional to the difference between the measured AFR and the target AFR, the bigger the difference, the bigger the feedback step,
  • Spark advance table can have different rpm and kpa bins than VE and AFR tables,
  • 115,200 baud serial interface with MegaTune2.25+,
  • CANbus networking
  • Barometric correction amount and direction configurable in software, and provisions for:
    • barometric correction based on initial MAP reading,
    • independent 2nd barometric MAP sensor for continuous real-time baro correction, or
    • no baro correction.
  • TPS values for open loop and flood clear mode are user configurable,
  • MAP based open loop can be set as well as TPS,
  • Both TPS and MAP based accel enrichment is built into the code, you can configure the ratio of each,
  • Blended Alpha-N and speed density is an option,
  • 2 spare I/O lines for custom controls. (This is in addition to 4 lines for Idle stepper control if you don’t need this, or the Fast idle solenoid then becomes a spare if you do use a stepper motor.)

DIYAutoTune Kits and Completed Units also Feature:

  • Extruded Aluminum case with CNC machined flanged ends for easy mounting and a perfect fit!
  • The crystal and all nuts are glued in place to reduce sensitivity to vibrations. (Completed units)

Available Source code means Endless Development.

As with the original MegaSquirt EFI system the MegaSquirt 2 is an open project allowing anyone to customize the hardware and code to meet different needs.  This firmware’s feature set has grown hugely and continues to be refined.  If there’s a feature you’re after, chances are MS2/Extra can do it!

As with all DIYAutoTune.com unassembled kits, the quality is second to none. Everything is meticulously organized and labeled to help make your ECU assembly go as smoothly as possible. For example, each of the above bags contains a certain type of part, one with all of the resistors, one with diodes, one with capacitors, etc. Inside each of these bags the parts are further broken down and labeled in their own individual baggies as pictured below. We even go so far as to put the components in numeric order to make finding them easier. We’ve really tried to think of everything.

 

Here’s a shot of a complete, assembled unit. This shows the silver case, but the board is the same.

Customer reviews

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17 reviews for MegaSquirt-II Programmable EFI System PCB3.0 – Kit

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What inputs and outputs are provided with this kit?

  • It includes the circuitry needed to connect to the following sensors and outputs:
    • Coolant temperature
    • Intake air temperature
    • 2.5 bar MAP sensor (onboard)
    • Oxygen sensor – narrow band or wideband with external controller
    • Throttle position sensor
    • On/off fast idle valve
    • Stepper fast idle valve
    • 2 injector output channels
    • Tach input – Hall effect, optical, or VR sensors supported
    • Single direct coil control spark output

I’ve seen a mention of an MS2 Daughter Card. Do I need to order that separately?

  • No. The MS2 daughter card is included as part of this kit.

Does this kit include a MAP sensor?

  • Yes, there is a 2.5 bar MAP sensor included. It is a small UFO-like item in a static resistant bag and will not look like a conventional GM MAP sensor.

What firmware does it have?

  • The daughter card ships without firmware. You will load firmware during assembly.

Questions & Answers

    I would like information on running this on a Jaguar Series 3 XJ6 using COP
  1. 0 votes
    Q I would like information on running this on a Jaguar Series 3 XJ6 using COP
    Asked by John Leigh
    A

    The Series 3 was in production for over a decade and they used a lot of different factory electronics during its production run. Please contact our technical support team with details of what trigger wheels are currently on the engine and what coils you wish to run. We'll be glad to help you pick out the right parts for your specific build.

  2. Hi, I have 94 suburban currently 350 obd1, 4l80e is kolene, transgo, yadada, going to dump obd1, going to have herzog build me a 383, AFR 190 heads, make my own intake, does your microsquirt trans integrate to the MS 3? If I can integrate a 4.0L wiring harness into a 3.0L smaller aerostar van, I am sure I can do this. assembly sounds like fun. Is there any way you could tell me what i would need for a complete install?
  3. 0 votes
    Q Hi, I have 94 suburban currently 350 obd1, 4l80e is kolene, transgo, yadada, going to dump obd1, ...... Read more
    Asked by Terry Bosak
    A

    The MicroSquirt ties in over CAN bus and so the MS2 or MS3 and MicroSquirt can be tuned with the same laptop at the same time and share data.  Please contact our tech support team for us to draw up a detailed quote.

  4. I would like to use this with a Nissan CA20E to first run the engine originaly and afterwards convert the engine to turbocharged. Example: https://club-s12.org/forum/index.php?topic=17136.0 What exactly i need and which MS would be the right?
  5. 0 votes
    Q I would like to use this with a Nissan CA20E to first run the engine originaly and afterwards con...... Read more
    Asked by Philipp Weber
    A

    We'll need to go over this project in more detail. Please contact our tech support team for a recommendation specifically for your project.

  6. Will this work on my volvo 740 sleeper build? If not, what do i need to add to make it work? Does it come with an assembly guide?
  7. 0 votes
    Q Will this work on my volvo 740 sleeper build? If not, what do i need to add to make it work? Does...... Read more
    Asked by lofex
    A

    Please see the MS2/Extra V3.0 hardware manual for current assembly directions.

    Volvo used several different ignitions on these cars. If you have an LH2.2 ignition, see our Volvo MegaSquirt installation guide. If you have a later crank triggered one, see the notes on missing tooth crank wheels in the hardware manual above.

    If you have any questions, please contact our technical support team.

  8. 84 Dodge Omni 2.2 non turbo, currently with weber carb. Would like to initially cover the ignition system and then cover fuel injection later. Would I be better off with ms2 or ms3, given the relatively low cost difference between them. Ideally I would get the ignition optimized and then as time and $$ permits, add the injection and recalibrate ignition as needed then. Thank you.
  9. 0 votes
    Q 84 Dodge Omni 2.2 non turbo, currently with weber carb. Would like to initially cover the ignitio...... Read more
    Asked by mike sutton
    A

    The MS2 and MS3 will have similar ignition capabilities on a four cylinder for this particular application. However, the MS3 will make it easier later to add sequential injection, as well as advanced power management and boost control features if you go turbo later. If you're on a tight budget but will want MS3 features later, you can start with an MS3 kit without the MS3X, and add the MS3X later.

  10. I have a chevy 350 with an aftermarket howells tbi system is there any way to put one of your kits on it? And if so what all would I need to make it work?
  11. 0 votes
    Q I have a chevy 350 with an aftermarket howells tbi system is there any way to put one of your kit...... Read more
    Asked by duke arnspiger
    A

    Yes - see this article for our recommendations for engines running a GM TBI ECU. Please contact us if you have any questions or need help drawing up a full list of recommended parts.

  12. I have 1987 300zx na and I'm putting a 1985 turbo 300zx engine in and I was trying to find out if this kit would work with my build only looking to run 12 psi on stock turbo
  13. 0 votes
    Q I have 1987 300zx na and I'm putting a 1985 turbo 300zx engine in and I was trying to find out if...... Read more
    Asked by Greyson
    A

    Yes. The wiring for these cars is nearly identical to our 280ZX Turbo installation article.

  14. Hello. I have a Renault 5 GTE 1.7l But do all types of injectors and sensors work on MS2 or may I exchange some components?
  15. 0 votes
    Q Hello. I have a Renault 5 GTE 1.7l But do all types of injectors and sensors work on MS2 or may I...... Read more
    Asked by Endre
    A

    As long as the injectors are EFI type (not Bosch CIS, K-jetronic, or other mechanical injection), they should work fine.

    The MS2 supports many common European ignition systems. If you can send us details of what crank trigger or distributor trigger pattern this is using, we can check if this is compatible. Worst case is, you may need to add a 36-1 or 60-2 crank trigger.

  16. Did it work on a audi 10v 5zyl turbo?
  17. 0 votes
    Q Did it work on a audi 10v 5zyl turbo?
    Asked by Patrick
    A

    It can run this engine with the right build options. It is easier to run the distributor equipped 5 cylinder variants, but it is also possible to build an MS2 for 5 coil on plug outputs.

  18. Hallo, i have a bmw e36 from 1996. It is a 1.8L and i have a turbo for it but is need a programmeble ecu to run it. I have seen the many good reviews and i want to buy it. But wil it work? It is sequintial ignition but it has a trothle cable... what do i need to change? Thanks for the reply.
  19. 0 votes
    Q Hallo, i have a bmw e36 from 1996. It is a 1.8L and i have a turbo for it but is need a programme...... Read more
    Asked by Michiel Desnouck
    A

    The MS2 can run this engine in a bank to bank fashion; you'll need to modify it for four spark outputs and for PWM IAC output, and possibly other features as well.

  20. This can work on a 1996 hyundai accent ?
  21. 0 votes
    Q This can work on a 1996 hyundai accent ?
    Asked by nicholas bourne
    A

    It can, although it is likely to need some extra mods. Please see the MS2/Extra V3.0 hardware manual for details.

  22. Will this work on my 1997 1.8l mazda miata
  23. 0 votes
    Q Will this work on my 1997 1.8l mazda miata
    Asked by Cody
    A

    It will with the appropriate mods. See this link for more details.

    How to install MegaSquirt on a 1990-1997 Miata

    Another option would be a DIYPNP. The kit costs more, but once completed, it will plug into your factory wiring harness on this particular car. Assembly time for a DIYPNP is approximately half the time needed to build a V3.0, as well.

  24. Does this fit on a bmw e46 330ci by 2001
  25. 0 votes
    Q Does this fit on a bmw e46 330ci by 2001
    Asked by Adrie
    A

    It can run this motor in batch fire as long as you either retain the stock ECU for the drive by wire or swap to a cable operated throttle. You will need mod kits for the ignition as it only includes one coil driver.

  26. Will this work on a 96 Ford Probe GT? I have a 2.5 V6 5 speed I plan to turbo.
  27. 0 votes
    Q Will this work on a 96 Ford Probe GT? I have a 2.5 V6 5 speed I plan to turbo.
    Asked by Josh White
    A

    Yes. Please see our '93-'97 Probe / MX6 MegaSquirt installation guide for what modifications and additional parts are recommended.

  28. I have a 91 1.6 Miata, recently ordered the pcb3.0 kit, if I follow the instruction on how to build and set it up, will this plug directly into my factory harness? Or will I have to build a harness to adapt to my factory harness
  29. 0 votes
    Q I have a 91 1.6 Miata, recently ordered the pcb3.0 kit, if I follow the instruction on how to bui...... Read more
    Asked by Nick
    A

    You would need to make an adapter harness using a short MS2 Wiring Harness and a OEM ECU Connector

  30. what does the "DIYPNP Nippon Denso 76 Pin Unassembled Kit" have that this does not, from my understanding, it does not have the ND76 female plug DB37 male plug wiring for the DB37 to ND76
  31. 0 votes
    Q what does the "DIYPNP Nippon Denso 76 Pin Unassembled Kit" have that this does not, from my under...... Read more
    Asked by Ali Masood
    A

    The DIYPNP makes a lot of optional circuits standard (boost control, knock control, a number of relay outputs, and more) and the assembly time is typically about half what it takes to build a V3.0. It is also much easier to set up a DIYPNP for sequential injection than a V3.0.

  32. What is all needed to set this up for coil on pack?
  33. 0 votes
    Q What is all needed to set this up for coil on pack?
    Asked by Robert
    A

    There are several ways to modify it for distributorless ignition. If we do not have a model specific installation writeup for the particular engine you plan to use this on, have a look at section 5.3 of the MS2/Extra V3.0 hardware manual for ignition output mod options.

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