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Lindsay (guest) 20 Sep 2010 05:16
in discussion Suggestions / Put them Here » Step 22 in the Guide

For now I have just installed a jumper from S12C to JS9, for that step.

The next step was testing and everything checked out.

I am now up to step 50, the next one with options, this time I need to choose what input for the tach I need.

I am assuming I have to take the first option (Hall/optical input circuit, and not the option where it triggers off the coils). However I have seen one discrepancy between the pictures on this site and the instructions in this step, when I get to step (v) it says to install a jumper over D1 and D2 whereas in the pictures on this site there is just nothing there.

I would like to suggest that you provide instructions about the mega manual, describing which steps to follow, which ones to skip and what to do in the ones with a number of options.

So far (at step 50 out of 80) it seems you just need to do all steps with some choices in steps 22 and 50-52

Lindsay (guest) 18 Sep 2010 03:00
in discussion Suggestions / Put them Here » Step 22 in the Guide

I forgot to mention I am building the MS-II

Step 22 in the Guide

Lindsay (guest) 18 Sep 2010 02:54
in discussion Suggestions / Put them Here » Step 22 in the Guide

I'm just looking for some clarification about step 22 which is as follows:

22. Now you need to make a decision on the first 'optional' component: if you are going to use an IAC stepper motor with MegaSquirt-II, you must install a jumper from the hole marked S12C to the hole marked JS9 (+12C). These are on the bottom side of the board, on the DB9 side of the processor. DO NOT INSTALL THIS JUMPER FOR NON-MegaSquirt-II APPLICATIONS - IT WILL DESTROY THE PROCESSOR!!

If you are going to use a stepper style IAC (such as the GM IAC), you need to connect jumpers to bring the controller signals out to the DB37:

Connect (1A)JS0 (under the processor socket) to IAC1A (near the DB37 connector) - this brings out IAC1A on DB37 pin #25
Connect (1B)JS1 (under the processor socket) to IAC1B (near the DB37 connector) - this brings out IAC1B on DB37 pin #27
Connect (2A)JS2 (under the processor socket) to IAC2A (near the DB37 connector) - this brings out IAC2A on DB37 pin #29
Connect (2B)JS3 (under the processor socket) to IAC2B (near the DB37 connector) - this brings out IAC2B on DB37 pin #31

If you will be using an ignition output signal to control a coil or ignition module with MS-II, you will, likely be directed to jumper JS10 to:

IGN, or
IGBTIN, with IGBTOUT jumpered to IGN

(Check the documentation for your ignition set-up!).

If you will be using CAN communication between boards (MS-II and GPIO, for example), you should also jumper JS6 to SPR1/CANH and JS8 to SPR2/CANL

So for MS-II implementation, the following connector signal jumpers are suggested:

CPU Connector Description
JS0 IAC1A Stepper motor signal 1A
JS1 IAC1B Stepper motor signal 1B
JS2 IAC2A Stepper motor signal 2A
JS3 IAC2B Stepper motor signal 2B
JS10 IGN or
IGBTIN (w/ IGBTOUT->IGN) Ignition output
JS6 SPR1/CANH CAN High
JS8 SPR2/CANL CAN Low
(Note: If you are using a PWM style idle controller instead of a stepper IAC, see step #62.)

Ive tried searching for something specific to the Miata but have had some trouble with conflicting information, could you specify what I need to do?

Re: Question on MS-II install on 1.6L Miata

jimbojs00 16 Sep 2010 14:48
in discussion Suggestions / Put them Here » Question on MS-II install on 1.6L Miata

Thank you so much for the quick response… HUGE help! I didn't mean to sound anxious or upset about the confusion, I really am in no hurry to get this installed. This is going to be a long project and I'd rather have it RIGHT than fast.

Once again thanks for the fast response, this is an absolutely great write up.

Re: Question on MS-II install on 1.6L Miata

cardriverx 14 Sep 2010 23:56
in discussion Suggestions / Put them Here » Question on MS-II install on 1.6L Miata

Mike, just slow down and read the whole page. Yes, remove D15 and replace with Q7. This is for the FAN output. You could use another one of megasquirts outputs, but for this write up I chose to use D15. Ignore the fact that the LED is there in the next pic, it is just so happenes that board is not standalone.

Like it says, you build BOTH of the mods. The bottom one is for the spark output, and the top one is for sensor inputs and such.

Replaceing Q7 for Q4 is a mistake. Sorry about that, ill fix it when I have time.

Hope that helps.

Question on MS-II install on 1.6L Miata

jimbojs00 14 Sep 2010 22:58
in discussion Suggestions / Put them Here » Question on MS-II install on 1.6L Miata

Ok, this is killing me I really hope someone can help. I have done a TON of reading on this project. It has been an on and off again build project for about a year. I have the MS-II built, but it's the mod parts that are confusing at best.

On the assembly page, for standalone it's saying to Remove D15 and replace Q7 with the transistor in the relay mod kit. But, under the next section (Input/Output Mods) all three LED's are shown. Also, there are two pictures for the Input/Output mods. Do I build both of them? Or, are they two different ways to do the same thing, and I only build one or the other? The Second picture says to replace Q7 with Q4? But, I already replaced Q7 with the transistor in the relay mod kit!

~Mike

Re: question

cardriverx 09 Jan 2009 23:12
in discussion Suggestions / Put them Here » question

Innovative LC-1 wideband controller.
lc-1

question

icantthink4155 05 Jan 2009 00:42
in discussion Suggestions / Put them Here » question

whats LC-1? Mentioned in the wideband pages, did a seach on MT.net and google.

Welcome!

cardriverx 09 Dec 2008 19:02
in discussion Suggestions / Put them Here » Welcome!

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