Megasquirt info

What is this crap? Take that to zcar.com!

Nah this crowd will take to the info FAR better than z31.com or zcar. I didn't realize you didn't know about it or I'd have mentioned it to you. Sorry bout that.

FYI anyone who doesn't know tmbg, he is really putting time into the MS stuff and has some really good info to contribute here.

Very nice! Thanks for putting your time into writing it all up, it's very easy to read and comprehend. Someone might be able to pull some of the voltages for sensors like CHTS and coolant temp from the stock ECU via the data in nistune, should make your life a little easier.

I can put a link to your write-up in the user links sticky if you are ok with it.

Nick (Blozup) is doing the same thing, maybe you guys can share knowlege?
http://www.blozup.com/ms.php

I was over playing with it last night. It's pretty cool.

Yea, I saw Blozup's post right after I posted mine.

feel free to put it in the sticky. I want to try to make this info as available as possible; there's a dearth of good Z31 info in the MS community.

One of the reasons I chose MS is because I'm a programmer by trade, and I dabble in hardware. I hope to be able to extend MS to add some nice features, for instance grahfZ told me about a feature that MSnSE has, traction control rev limiting, and I'm thinking about adapting it to work with MS2.

Also, this has been around for almost a year now, but I dunno how many people outside of the chatroom have actually seen it, but have you guys seen the boost gauge that I designed and built? It's on the front page at http://www.z-toys.com/

Damn there are a lot of typos in mine.

We should collaborate some, or something. At least link each other's pages.

if theres anyone out there i would like to know more cause i really thought about doing this just need help or to know how to fully do it wiring and programming and what exactly to buy for it so and anybody could help please help thanks other than that u both have some great info but i need more

How did you guys manage to get MS to go with the distributor and control the ignition?

When i started to wire up my MS I thought I'd let the ECU control spark, and MS to control fuel. But if there's an easy way to make MS take care of them both I'd be more then happy! I'm running MS V3.0

It's very easy. You can use the stock ignitor and coil and such.

If you already have the CAS hacked to feed MS the tach signal, then all you need to do is select the FIDLE output as a spark output (or, I believe the v3 board and updated software allows a seperate dedicated spark output pin so you can save you fast idle output). You hook that to the base of the ignitor…

In the (1984) FSM, the ignitor is labeled as the "Power Transistor", and it is the green wire with a black stripe (G/B) going to the transistor next to the coil.

Just hook that up to the output from MS, however, you will need to hook up a +5v pullup resistor to basically amplify the signal from MS enough to be able to trigger the coil.

Here is a diagram from my site: http://blozup.com/ms.php#vehiclewiring

Blozup-> Thank you! My car is now running with MS!

Now i have to figure out how o get the stock tachometer working again.

Anyone have an idiot-proof write-up on how to get that %&/"#¤ tachometer working again?


:lol:

Mine worked, what did you do differently to the tach wiring? What year car?

with the TECII you either have to get a Tach adaptor from msd or you have to use the gpo to control the tach

You gents have done a great job documenting this. I managed to muddle thru getting mine running but it would have been nice to have had this info specific to the z31. For me the most difficult part was the wiring harness since I didn't have enough different colored wires and had to use various colors of shrink tubing to be able to identify them. I think next time I would buy one of the pre-made harnesses. So far I have had mine to where I could rev it up a little before I pulled the engine so now I've got to figure out how to hook it all up again. Norm

MS > *

Can't wait to get the 240z running on it.