How to make and install your own Diy MegaSquirt

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Feb 3, 2008 | 09:56 AM

#101

TrickerZ

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Might want to add the 0.1uF capacitor fix for JS8 to ground to the guide. It'll fix a noisy CAS signal. I know it was driving me crazy. There will probably be others.

I noticed it happened more often on my acceleration, so I also put a 4700uF cap between 12V power and GND just incase. A little overkill, but RadioShack is just not what it used to be as far as cap selection.

Feb 6, 2008 | 11:32 AM

#102

Braineack

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bump for major updates

Feb 6, 2008 | 11:57 AM

#103

The_Pipefather

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Are the 0.040 and 0.070 contacts soldered to the wires or just crimped? And the side with the raised tab on the contact goes on which side inside the gray connector? Can someone please post up a pic of a finished contact.

Feb 6, 2008 | 11:58 AM

#104

Braineack

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they are crimped. i can take one tonight.

Feb 12, 2008 | 12:38 AM

#105

iWeasel410

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I crimped and then soldered mine, I don't trust crimps alone.

Oct 20, 2008 | 01:50 AM

#106

akaryrye

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I set up my friends 94' parallel install today without R7 today per these values and the coolant reading was low. Fans came on at an indicated 180* F, 20* lower than they should have been. Anyone else experienced this before? Possible i used the "with R7" values by accident or would it be more off? Any way to dick with this by adjusting the inc files until i get a closer reading and then recompiling/flashing?

Quote:

If 94-95: Use Rx7 defaults for the CLT and GM defaults for the AIT.

If piggyback with R7 installed: Use 910 for CLT and 1450 for AIT for the bias.
If piggyback without R7: Use 1450 for CLT and 1450 for AIT for the bias.
If standalone: The bias will be 2490 for each.

CLT Values:
deg F
-4 16150
104 1150
176 330

Oct 20, 2008 | 10:57 AM

#107

Braineack

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yes you can acutally.

if you use easytherm and simply change the bias, then put the three files into your project folder, you'll see it on the laptop how it will then read.

do this in the morning to see if you can get them to match perfectly. once you find values that match ambient perfectly, flash the .s19 file.

Sorry if they are off, I'm working with what people are telling me for the +94 plus stuff.

Oct 20, 2008 | 11:31 AM

#108

akaryrye

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no problem, ill let you know the results when i figure it out. Im going to also be doing my 97' the same in a few weeks or so and ill let you know what works for that too.

Apr 28, 2009 | 02:28 PM

#109

Braineack

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Updated the wiring diagrams, should make more sense now.

Apr 13, 2012 | 10:27 PM

#110

bikersam717

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Software link doesn't work. New link?

Apr 13, 2012 | 11:16 PM

#111

Joe Perez

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Quote:

Originally Posted by bikersam717

Software link doesn't work. New link?

Uhm which one? This threa is three years ol an more than 100 posts long.

(Paron my spelling, the "backwars-b" key on my keyboar just quit working.)

Last edited by Joe Perez; Apr 14, 2012 at 03:40 AM.

Apr 13, 2012 | 11:32 PM

#112

bikersam717

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Quote:

Originally Posted by Braineack

Software:

This guide requires the following software:

MegaTune: http://www.megasquirtpnp.com/downloa...tup_021108.exe
Hi-Res Code: http://boostedmiata.com/MS/msq/hr_10g.zip
EasyTherm: http://www.megamanual.com/files/soft...ll_Install.zip

Step 1:

Install the Megatune software onto your laptop.

Run the installation software for MegaTune allow the software to install to the default location.

http://www.megasquirtpnp.com/downloa...tup_021108.exe

Open the directory, leaving just the 9093 WITHOUT AFM to use, delete all the remaining 9093 or 9495 folders. Rename it to something like “Project Folder” or "IM_AWESOME"

then go here: http://www.boostedmiata.com/MS/msq/hr_10g.zip

Extract hr_10g.zip into the folder you just renamed and run copy-ini.bat. This will update your software to hr_10g code.

Step 2:

Create your Firmware file (only necessary if you're running parallel).

Open EasyTherm
Change the 'Code Version' (towards the bottom on the RHS of the screen) to "Custom"
Change the port to your port (COM 1 or what-ever it is) on the bottom of the screen
Change the 'Coolant and Air Temp' settings to your desired settings;

90-93: Use Rx7 defaults for the CLT and GM defaults for the AIT.

Piggyback with R7 installed: Use 1280 for CLT and 1450 for AIT for the bias.
Piggyback without R7: Use 2625 for CLT and 1450 for AIT for the bias.
Piggyback without R7 or R4 (recommended for piggyback sharing the sensors): Use 2625 for CLT and 3475 for AIT for the bias.
Standalone: Bias will be 2490 for each.

If 94-95: Use Rx7 defaults for the CLT and GM defaults for the AIT.

If piggyback with R7 installed: Use 910 for CLT and 1450 for AIT for the bias.
If piggyback without R7: Use 1450 for CLT and 1450 for AIT for the bias.
If standalone: The bias will be 2490 for each.

CLT Values:
deg F
-4 16150
104 1150
176 330

If 96-97: Resistance scale pending.

If piggyback with R7: Use 790 for CLT and xxxx for AIT for the bias.
If piggyback without R7: Use 1544 for CLT and xxxx for AIT for the bias.
If standalone: The bias will be 2490 for each.

If 99-00: (ECU CLT BIAS 1544; just my notes ignore)

If piggyback with R7: Use 790 for CLT and xxxx for AIT for the bias.
If piggyback without R7: Use 1544 for CLT and xxxx for AIT for the bias.
If standalone: The bias will be 2490 for each.

CLT values
Celsius temps
0 6000
40 1100
80 320

Once you have changed the settings, click on the "Write .inc and .s19 Files" button on the bottom of the EasyTherm screen
The file that you want to write to is the 'msns-extra.s19' file in the C:\EFI\ folder in the hr_10g file that you unzipped to earlier.

Let’s flash that file

IF YOU ARENT USING A STIM, UNPLUG YOUR COILS/IGNITORS!

Put a jumper on the boot pin on the MS motherboard and power up the Stim/ Ignition to ON.
Click "upload to MS" Choose the 'msns-extra_mod.s19' file in C:\EFI\ (Don't touch a thing on your computer after this or it will freeze)
It will write about 1775 lines, if it doesn’t do it again from step 2.
Unpower the MS and remove the boot jumper.
Copy the three .inc files from C:\Program Files\Easytherm into your Project Folder’s “MTCFG” folder, click yes to overwrite if prompted.
Open the Megatune Software
1. go to file > Configurator
2. under MegaTune2.25, highlight msns-extra.ini.hr10, then go to file activate.
3. Then File > Save.

The first one.

Apr 14, 2012 | 12:21 AM

#113

Joe Perez

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Quote:

Originally Posted by bikersam717

The first one.

Ah, yes. Looks like all the links broke when they introuce the MSPnP2 and move all the coe for the "classic" version (ammit, this keyboar is pissing me off) to a ifferent page.

Here: http://www.megasquirtpnp.com/gen1/mspnp_downloads.htm Secon from the top.