The MegaSquirt ECU is designed to be an
educational tool, therefore you should expect some reading / studying
to be involved in order for you to complete your project. I have compiled
a comprehensive set of manuals specifically for the MS1-Extra code and
the MS2-Extra code to help you on your way:
Manuals -- MS2-Extra
These ECU's have no EU approval or any other type of
approval and are therefore meant for track use or off road use only.
It is assumed that you can use a computer and have access
to a laptop which can run Windows based programs, as this is essentially
one of the tools you will need to tune the engine. Whilst I am willing
to assist you with your setup or any questions you have via e-mail or
over the phone, the responsibility for getting your engine running safely
The drawings and all other downloadable materials on
this site are there to be used at your own risk.
The MegaSquirt ECU is simply the best ECU you can buy
for the money, indeed it is better than equipment that costs many many
times the price and rivals many others. This is mainly due to the nature
of the MegaSquirt community, in that the research and development has
been done by various people joining forces from all over the world,
rather than by a single company that has to recoup it's costs.
All the ECU's sold here are built by myself (a qualified
Electronics Engineer with over 30 years experience) in an antistatic
environment. Every ECU is tested on my unique test bed to simulate various
engine conditions. (This is the same test bed the MS-Extra code was
developed on!) They are then soak tested (run continuously) driving
an ignition coil, injector load and an idle valve for 12 hours under
various simulated conditions. After a final test the ECU is lacquered
before being packaged up for dispatch.
As yet I have had no failures due to a manufacturing
problem. But in the highly unlikely event that your MegaSquirt ECU should
go faulty then the ECU's I sell are all covered by a 12 month limited
warranty covering manufactures defects.
Please contact me if you feel your ECU is faulty and
I will repair it for you free of charge (postage not included) if it
is inside the warranty period. If the ECU has been modified by someone
other than myself then these modifications will not be covered. Carrying
out modifications yourself is perfectly acceptable, but if the defect
is found to be those modifications then charges of £20 per hour
plus parts will apply.
Whilst every effort has been made to setup the ECU for
your engine's configuration, I can NOT be held responsible for any damage
that may be caused directly or indirectly by the supplied MegaSquirt
ECU. After all, this is designed to be a Do-it-yourself project.
The base VE table and Spark map I install into the ECU is NOT meant
as the finished map, it may not even get your engine started, it is
there as a guide to help you to understand roughly what settings are
needed. No one can supply a map and garantee it will get you going I'm
It is your responsibility to ensure all wiring, settings and all of
the interfacing between your setup and the MegaSquirt ECU is correct
and tested before powering up the ECU. If you are in any doubt what
so ever, please contact me and I will help you.
I have supplied various diagrams on this site and on the CD, a set of
comprehensive manuals, etc, for the installation to be as easy as I
can possibly make it for you. It is strongly recommended that you read
the ReadMe.doc file (also supplied
on the CD) and that you read the tuning and software sections of the
manuals (also supplied on the CD) and ALL the documents supplied in
the "README_Files" directory on the CD before starting your
project. Please feel free to E-mail me regarding any questions you may