Megasquirt how to.

[se7en]

Okay, the way to run MS on our cars(obd1 anyway) is to buy the MS1 V3.0 board.

also, when assembling it, we have a hall sensor in our disty's.
so follow step 50a. and don't install the vr sensor stuff.

then you have to run a 1k ohm resistor from pin 24 to pin 28 on the db37 connector.

after that, I recommend you use the on board coil driver, so you can do away with the stock crappy ignition module, or HEI if you are running that.

when building your MSnS box, follow the directions, and install the vb921 coil driver with the pinouts that it mentions in the assembly manual.

after that, wiring it up is a piece of cake.

the spark output wire(I forget the pin) goes to the negative on the coil, and the positive side goes to the fuel pump relay.(so it is only on when the car is running)

that way you can't burn out your coil.

this is the simplest way to do it, and I recommend it.

maybe this needs a sticky?

7

Ps, oh yeah, it isn't difficult to assemble the v3.0 board at all, it just takes patience, and about 6 hours of your time.

pss, if you have any questions, put them here, and I will get an email notification.

[shameem]

Where did yoou get your kit and how much did it cost....

[se7en]

I got it from DIYautotune.com

$224 shipped.

I highly recommend them. It came really fast, especially from the USA.

[EZ_4_FUN]

Do you know if the pinouts from the harness to the MS unit are the same for both MS1:V3 and MS1:V2.2? I think I may need to order a new unit; I'm not sure but mine appears to have crapped out on me yesterday and I don't necessarily want to rewire it all over again.

[TEAMpK]

What motor are you running in your car man? I am working on setting up the Megasquirt on my B6T.

[se7en]

it says in my sig


GS-T = k8 with a turbo

[civic_kicker]

I have a question is this true that Ms a really hard to calibrate because i really want to save money im running B6T with b6DE head im able to assembly the Ms board well i guess but is this complicated to calibrate it anyone done this on a B6T in a mx3? 1994

[se7en]

not difficult at all, just takes a little patience, and ingenuity

[fowljesse]

If I use the onboard coil driver, can I get rid of my HEI module?

[se7en]

yes Jesse, that is how I am running it....I highly recommend the onboard vb921(I think that is the name of it...)