cjernigan

iTrader: (13)

• 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.

cjernigan

iTrader: (13)

Place holder
JIC

cjernigan

iTrader: (13)

Place holder
JIC

cjernigan

iTrader: (13)

Place holder
JIC2

ripracer

iTrader: (4)

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.

Zabac

iTrader: (39)

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

absRTP

iTrader: (12)

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

Braineack

iTrader: (62)

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.

absRTP

iTrader: (12)

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....

Braineack

iTrader: (62)

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.

absRTP

iTrader: (12)

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?

Braineack

iTrader: (62)

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

absRTP

iTrader: (12)

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

Thanks alot for the info

Ben

iTrader: (33)

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

absRTP

iTrader: (12)

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

KetchupH

Is there any difference when using MS2...?

Braineack

iTrader: (62)

difference between what?

KetchupH

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...?

Joe Perez

iTrader: (8)

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

KetchupH

easy...!;P thanks