• How To Make and Install Your Own DIY Megasquirt

• Software Installation

• Settings

• COM Port Problems?

• 90-93 Idle Droop or Stall Issues

• PW Adjustment Calulator

• Alternator Control for Standalone NB configuration

• Abe's Jason's Super-Awesome NB Cam & Crank Input Circuit

• How to scale your AFR Targets table to AFR instead of Volts when using AEM wideband

• Connection diagram for Standalone MS1 on '90-'93 Miata

• Improved Spark Output drivers (no more fried coils or pop at startup.)

• Super-cheap oscilloscope.

• How to wire an analog TPS to MS in a '90-'93 car.

• The Air Conditioning FAQ.

• Add an idle speedup input, for A/C etc.

• EasyTherm 5.0

• Much ado about Timing

• How to find your injector dead time

• Direct-fit, bolt-on 36-1 wheel from Mazda ZM-DE engine.

• Supplier of new, OEM-style harness connectors

• Direct serial interface to Innovate LC-1 wideband for MS3.

 

Place holder
JIC

 

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JIC

 

Place holder
JIC2

 

Can Megasquirt be built for a 99? I have searched and haven't really turned up any good info, nor anyone really using it from 99-00. If its possible could you point me to those threads.

 

Yeah man, sure thing.
It is right here https://www.miataturbo.net/forum/t17498/

 

Hi , I'm about to order my first MS, and I have couples of questions and I did'nt want to start a new tread 'cause I know I would not be the first to do this and it would have pissed you off :P XD

First it's gonna be for a 1990 B6-T

here are the question:

I need a
-Megasquirt
-Wideband Controller with Sensor
-GM Open Element IAT Sensor
-GM Closed Element CLT / IAT sensor

what else do I need to order if I don't want to order again in 1 or 2 months :P

Plus, I would like to know what are the difference between some products such as:

MS-1 PCB2.2
and
MS-1 PCB3.0


GM Open Element IAT Sensor with Pigtail
and
GM Open Element IAT Sensor with Connector



GM Closed Element CLT / IAT Sensor with Pigtail
and
GM Closed Element CLT / IAT Sensor with Connector



Thanks for your further information

absRTP

 

you want at least the v3.0 board.

you want the open element sensor and only need one AIT sensor, you'll use the OEM coolant sensor for your coolant sensor.

I like ordering the kit with the AIT bung included as well: MegaSquirtPNP and DIYPNP IAT Sensor Kit - Steel Bung DIYAutoTune.com

If standalone, you'll want to order the idle control mod-kit: http://www.diyautotune.com/catalog/p...t39-p-134.html

if you want to save time when doing a harness you can use the pre-made db37 pigtail: http://www.diyautotune.com/catalog/m...ess-p-114.html or buy the 24" wiring bundle and make it yourself: http://www.diyautotune.com/catalog/m...ong-p-102.html (the MS kit comes with the db37 connector and hood)

then you'll just need to figure out building a harness.

 

Thanks for the fast answer, but I won't need the CLT?

asking 'cause a friend of mine told me I might need one (he builted 2x BP-T mx-3) so just asking....

 

Just use the oem one. We typically use the GM open element sensor for 1. fast response 2. OEM closed-element AIT is within AFM/MAF which we remove.

 

Perfect,

so let's say :
-MS-1 PCB3.0
-Wideband Controller with Sensor
-PCBv3 and v2.2 -- Pullup Resistors 'ModKit'
-18" MegaSquirt Pigtail Harness
-PCBv3 -- PWM IAC Valve Control (TIP120) 'Mod-Kit' -> (going standalone)
-MSPNP and DIYPNP IAT Sensor Kit - Steel Bung

Am I right?

 

that will get you 95% of the way, then you just need to figure out wiring it into the factory wiring.

 

Perfect, that's gonna be the "tricky job" :-P

Thanks alot for the info

 

Looks good. I'm assuming you already own a DB9 cable. I would really recomend a JimStim, jumper wires, and power supply too.
Miata-specific build instructions are here:
How to MegaSquirt your Mazda Miata

 

I'm studying in Electrical Engineering :P

I already have a USB to DB9 cable plus I will have a simulator when done

thanks for the info by the way

 

Is there any difference when using MS2...?

 

difference between what?

 

If what you need for ms1 is:
-MS-1 PCB3.0
-Wideband Controller with Sensor
-PCBv3 and v2.2 -- Pullup Resistors 'ModKit'
-18" MegaSquirt Pigtail Harness
-PCBv3 -- PWM IAC Valve Control (TIP120) 'Mod-Kit' -> (going standalone)
-MSPNP and DIYPNP IAT Sensor Kit - Steel Bung

What does I need to go MS-2...?

 

Exactly the same list, only change the 1 to a 2 in the first line.

 

easy...!;P thanks