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F requently A sked Q uestions • • • • • • • • • • • • • • • • • • • • • • • • • Please note: this site is primarily for those wanting to learn the theory, implementation and tuning of electronic fuel injection systems for internal combustion engines. If you prefer to see if a MegaSquirt® EFI controller might work on your vehicle before proceeding, you might check: • the, • the, or • for other references. In general, the MegaSquirt® family of EFI Controllers by Bowling and Grippo is not designed to be a 'no hassle' solution to user's EFI needs.

Instead it is intended to be an educational process. As a result, a large amount of reading and study is required. If you are new to the MegaSquirt® community, you may find there is a lot of new information to digest, and much of it will seem confusing, or even contradictory. Your best bet is to read and re-read the FAQ and the manual thoroughly. The MegaSquirt® FAQ is below, and the manual with all of the MegaSquirt® info you are likely to need is here: There are a large number of considerations, options, and independent hardware paths that may suit you and your vehicle, but only you know your wants, needs, and abilities. As well, any of the family of MegaSquirt® EFI controller are 'universal' ECUs, and it is up to the user to sort out the details for their vehicle. Others may be able to provide some help on your vehicle, try the forums at for general MegaSquirt® information and support, or look on the.

Some other distributors (see the ) also have application specific guides. You might also want to check out the for MS-II that adds some features to the base hardware, such as sequential fuel and COP ignition control for up to 4 cylinder, or the that provides sequential for up to eight cylinders. MegaSquirt® EFI controllers are for experimental and educational purposes. No warranties are expressed or implied.

Neither Al Grippo nor Bruce Bowling are responsible for the construction, installation, or targeted use of this unit. This unit has been tested on many engines, however, it is an experimental unit and the end-user assumes all responsibilities for its use and application. Do not use in an aircraft which, if the unit fails or ceases to operate properly, can fall out of the sky. Do not use on a boat where, if there is a failure, results in a situation where the vessel is stuck in a hurricane and sinks to the bottom of the ocean. In other words, follow the manual carefully, and seek authoritative help if you have questions. This FAQ, our manual, and our forums are solely for the support of MegaSquirt® boards by Bowling and Grippo. What is a MegaSquirt® EFI Controller?

The MegaSquirt® family of EFI controllers (including MS-I™, MS-II™, MicroSquirt™, and the MS-II Sequencer™) are intended as educational projects for those who want to learn about electronic fuel injection. They are experimental Do-It-Yourself programmable that you build yourself. MegaSquirt® controllers will work on virtually any liquid fueled spark-ignition engine, naturally aspirated or boosted (up to 21 psi boost with the standard MAP sensor) as long as they are not '. Note that any MegaSquirt® EFI controller is the controller only, you will have to gather the remaining fuel system parts yourself (from 1 to 16 injectors, sensors, fuel rails, fuel pump, etc.). MegaSquirt® and MicroSquirt® controllers are experimental devices intended for educational purposes. MegaSquirt® and MicroSquirt® controllers are not for sale or use on. Check the applicable laws in your locality to determine if using MegaSquirt is legal for your application.

For more information, see: Experimental means that YOU are responsible for sorting out some details of your fuel injection that are specific to your application. Do-it-yourself means that you save money by assembling it yourself with a few basic tools and. A MegaSquirt® EFI Controller will provide fuel control on one to 16 or more injectors, of high or low impedance, and for any number of cylinders, even three and five cylinder engines and odd-fire engines. If you have, electronic control of number of are supported, including: from General Motors, from Ford, from Ford, or you can. For fuel only control, you can trigger off an inductive coil's negative terminal ( but not a capacitive discharge coil (CDI) coil, such as a, which will need an appropriate conditioning circuit).

There are four main aspects to the MegaSquirt® EFI Controller system: • Processor: You can select one of two processors (68HC908 or ). Has a faster processor, better injection pulse resolution, and has a number of added functions (like a,, and user configurable for things like fan control or shift lights). The 68HC908 processor, used for MegaSquirt-I™, is a small black integrated circuit (chip) about 0.6' x 2.0'.

MegaSquirt-II™ processor upgrade (aka. MS-II™ or MS2, also used in MicroSquirt™ and MS-II Sequencer™ controllers) is a small (1.15' x 2.6') assembled PCB ( printed circuit board) that plugs into the same 40-pin socket on the main board as the 8MHz 68HC908 processor, but uses the much more powerful 24MHz MC9S12C64 processor. The board is mostly surface mount devices (SMD), and it is not a DIY board, but it is the same size and fits in the same case.

There are also the • controller (same processor as MS-II™ but fully-assembled, smaller and with a weatherproof connector), • (similar to MicroSquirt, but with more build-it-yourself options), and • controller (fully assembled with full sequential fuel injection for up to 8 cylinders, and full COP control for up to 8 cylinders). • Embedded code (aka.

' firmware' or ' code'): this is loaded onto and stored on the MegaSquirt. It must match the processor you are using. There are sometimes several options for a particular processor, for example to the for the 68HC908 processor. The MS-II code can be found.

All of the codes are free to download to upgrade older MegaSquirt® controllers. • Tuning software (, etc.): this is a Java cross-platform application. It runs on a laptop or notebook computer, and lets the user see, adjust, and record (' datalog') the tuning parameters by 'talking' with MegaSquirt® through the serial port (the laptop has a serial port, and MegaSquirt® does too. A DB9 cable connects them. This part of the system, the tuning software is where you do most of your 'interaction' with MegaSquirt. The tuning software has been designed to work with any of the code/processor combinations, but you may have to configure it.

Click the link above to get the lastest version. There is also the (aka. 'stimulator', or 'MegaStimulator'). FSX Iris Pilatus PC 21 V.2.0 on this page.

This essentially duplicates the engine signals that MegaSquirt® would see in the car, letting you see if everything is working (by monitoring it with ). There are also a number of optional components to the system: A. Here are a few general questions to ask yourself before digging into the documentation to see the specific functions of each main board and processor/code combination: a.

Will you built it yourself? If NO, then you will likely want a with either an MS-I™ or MS-II® (see below) processor,. If YES, you are building MegaSquirt® yourself, you have the option of V2.2 or V3 main boards. V2.2 is slightly cheaper, but the has many more options, improved circuits, and more extensive documentation. We recommend V3 in all cases. Will you be controlling ignition timing? If NO, then MegaSquirt-I™ will most likely suffice.

If YES, then an MS-II® or MicroSquirt® (or MS-II Sequencer®) is your best option for. MicroSquirt® or MegaSquirt-II™ can control up to two ignition outputs, meaning either can do a 4-cylinder engine with 'wasted spark' ignition. For full sequential fuel injection with up to 8 ignition outputs (up to 8 cylinders), the upcoming is your best bet. Is there anything you'll need to control besides fuel and ignition?

If you have a you will need an MS-II® (or MS-II Sequencer™) to control this. On/Off idle valves can be controlled with MS-I™. MicroSquirt® will control PWM idle valves and ON/OFF valves, but not stepper motor IACs.

MS-II® also has user configurable outputs to control other functions (fans, shift lights, etc.) d. What size injectors will you be running?

If you are running (typical of high output engines - turbocharged engines, race engines, etc.), you will likely need MS-II®, MicroSquirt®, or MS-II Sequencer™, as these have 100 times better pulse width resolution than MS-I™, which really helps when trying to set the idle and cruise pulse widths. Non-B&G code may offer other functions on various hardware combinations. Where can I find the set-up parameters and wiring tips for my particular engine? There are a number of ways to set up the parameters, which will depend on your particular combination. First, be sure to read the tuning guides: • MegaSquirt-I: • MegaSquirt-II: • ( configuration); • ( tuning) There are descriptions of a number of the parameters in here:.

There are also various technical guides (that may have vehicle specific information) at the. However there are a many ways to get 'head starts' on things like VE table, etc.

One is to copy the setting from someone who has a similar combination of parts. You can look for similar vehicles in the 'Success story' forums here:, and 'private message' the person using the button at the bottom of the post. You might also look on the for information about using MegaSquirt® on your vehicle.

However, please be aware that you will very likely have to tune the parameters, even if you are using settings from an apparently identical set-up. Are MegaSquirt® EFI controller emission exempt in the U.S.A.

Or other locations? MegaSquirt® EFI controllers DO NOT have exemption orders, and thus are NOT emissions legal for sale or use on any on-road pollution controlled vehicles in the U.S.A. Competition vehicles that are never operated on public roads may be able to use MegaSquirt® EFI controllers, and some older 'non-emissions' on-road vehicles might be able to use MegaSquirt® EFI controllers as well. For other regions, please check your local regulations to see if a MegaSquirt® EFI controller is legal for your application. There is more information here: What do all the version numbers mean for the hardware and code(s) for MegaSquirt?

Right now there are two processors for MegaSquirt: • 68HC908 was used on all MegaSquirt® EFI Controllers up to 2005, and many after it. It is a discrete 40 pin IC ( integrated circuit - aka. It will run the standard MegaSquirt® code, • ™ add on daughter card replaces the standard 68HC908 microprocessor and allows the controlling of ignition advance and stepper motor idle air controllers (IAC), as well as having 12x12 tuning tables (for both fuel and ignition), and a number of other features. You can find out more here: There are 6 versions of the MegaSquirt® main board (PCB) in service: • V1.01 DIY main board from the first group buy in 2001.

These are no longer available, • V2.2 DIY main board from the second group buy (2002) and all sales until July 2005 ( they can be identified because they are primarily green, and have V2.2 printed in the top left corner), If your V2.2 main board is RED, your board is NOT a Bowling and Grippo main board, and the instructions here DO NOT APPLY to your board. You may wish to ask your seller to exchange it for a genuine B&G board, or give you your money back. If the seller won't exchange the board for a real board, or give you your money back, you should complain to eBay/PayPal (assuming it was an eBay purchase).

• DIY main board that has a number of extra features specifically designed for (V3 PCBs were released July, 2005) ( they can be identified because they are primarily blue, and by the large heat sink area and the proto area grid). • an assembled SMD ( surface mount device) board to make it easier for distributors to offer completed kits - it has the same size and functionality as the V3.00 board in most ways, • ®, a fully built ECU based on MS-II processor but entirely in SMD with a weather-proof case and connector, • ® - an experimenter's version of the MicroSquirt PCB, and • ™, an enhanced version of the MicroSquirt® with sequential injection and individual cylinder fuel and spark advance trim ( in the planning stages). • is also available. It uses a more powerful processor with expanded inputs and outputs to allow sequential fuel and coil-on-plug control for up to eight cylinders.

There are two main Bowling and Grippo base code threads right now: • the for the MS-I™ 68HC908 processor, which has a basic fuel-only 'feature set', •, that runs only on MegaSquirt-II™ processors and provides ignition and stepper IAC control as well as user configurable spare outputs. MegaSquirt-II™ (MS-II™) will work with V1.01, V2.2, V3, or the V3.57 main boards. The ease with which you can take advantage of all the features (stepper IAC for example) becomes easier with a higher numbered version of the main board, as more of the wiring is in place and just needs jumpers connected to set it up. However, it can be done on any board, it is just harder on some.

I don't know my code version, either because I forgot it, or I bought the MegaSquirt with unknown code loaded on it. How can I find out what code is on my MegaSquirt? Can I save the existing settings? You will want to know what code your controller has on it, especially if you wish to preserve the setting on the controller. To get the code version from the controller, see the PortCheck program: Unzip the file.

The program does not need to be installed, you can just click on the portcheck.exe icon to start the program. Run this on a Windows PC with your MegaSquirt controller hooked to the MegaSquirt controller using a 'straight-through' serial port cable. It will query each of the COM ports on your computer at various speeds (aka.

'baud rates') until either a code version signature is reported (telling you what code is loaded on the controller) or all the possibilities are exhausted (telling you that you have no communication with the controller - see below). To communicate with with the MegaSquirt controller using TunerStudio, you will need to install the correct INI file.

In many cases, TunerStudio will recognize the code version and install the INI automatically. If you need to install an INI file manually, you can find INI files here: Once you have connected with TunerStudio, it will automatically grab the current user settings from the controller. To save these on your PC, go to 'File → Save Tune As' in TunerStudio to save an MSQ file of all the current settings. If you don't care to preserve the settings (if it was from a completely different or unknown application, for example), you can skip PortCheck, and just reload new code, see this: - this will wipe out the old code and settings and leave the controller in a 'fresh' state). If you have trouble communicating with your MegaSquirt controller, see the communications troubleshooting guide at: What is 'tuning'?

Tuning is an iterative process that starts with setting the general parameters (for fuel, spark advance, and air flow) to get the engine running, and continues until the engine performs optimally under all conditions (as judged by the tuner). There is much more here: What if I have an electronically controlled automatic transmission (such as a GM 4L60e), can any of the MegaSquirt® controllers provide shift solenoid control? Will I be able to tune the shift points, etc.? There is a controller for automatic transmissions from Bowling and Grippo. Emil Bulls Angel Delivery Service Rar Download. The code is called ' MegaShift™' ( aka. 'MShift™') and this code runs on the.

The MShift™/GPIO controller can function as a standalone transmission controller, or it can be fully integrated with MS-II®/MicroSquirt™/Sequencer™ controllers via the (CAN) protocol, reducing the overall number of sensors required and improving the control strategies. Shift points and many other factors are adjustable. As well, there is provisions for: • Up to 8 forward speeds (with the latest ), • and monitoring/datalogging with, • Fully user configurable automatic or manual mode, with user tables for shift speeds and line pressures a based on speed and load, • (with user settable bins values) for automatic shifting. • Context sensitive help for all user parameters by pressing F1 button while in any menu in (while connected to the Internet), • (can be disabled if desired), • Speed in 0.1 mph ( or kph) increments, • Odometer in 0.001 mile ( kilometer) increments, • of speed, gear, odometer, line pressure, instantaneous fuel efficiency, converter slip, etc., etc. • Provisions for 'paddle' up and down shifter buttons on steering wheel with 'Shift Button Duration' for, • when stopped in gear to prevent stalling, • (to lessen drive line shock, or chance of wheel spin, etc.). • when load is above a user specified threshold (for each forward gear above first), • Four LED indicators for current gear (or these outputs can be used to control a ), • and many, many more. See the for more information on MShift™/GPIO.

How can I find out more about MegaSquirt® EFI Controllers? Read this page first, then by following the link to the table of contents, it should answer most of your questions. Where can I ask questions about MegaSquirt? For even more info, or to ask MegaSquirt®-related questions, register with one or more of the MegaSquirt® support forums (you have to register with each forum separately, but you can use the same username - if available - and password for all of them). However, be sure to read the applicable sections of this FAQ and the before posting on any of the forums, as many users will not respond to questions that are already answered in this FAQ.

Also, be sure to read the for our forums, as these rules may be different from what you may be used to on other forums, and transgressions may not be treated lightly.: Educational, development, and research on the base B&G MegaSquirt® code and hardware.