How to connect the ecu to laptop!! please help!!!
 

I have my microtech lt10s with x4 box hooked up. It starts the car and everything. I then bought the microtch dongle (black) and plugged it onto the ecu. Then bought a cable from 9 pin to 15 pin. Plugged into my laptop and it wont initialize into either of the com ports. So then i went out and bought a 9 pin to usb. Now it still doesnt work... Is the software not compatable with windows 7? or am i not doing something to get it to work? please help me!!!

It work for me. I have the adapter from serial to usb i got it from radio shak. make sure your laptop recognize the adapter first and downloads the driver.

you have to change the comm ports for your laptop. Usually its set on some random number. Google switching comm ports for windows xp if thats what your using.

Try the below

Wait...9 pin to 15 pin? Please explain...

Serial ports are either 9 pin or 25 pin.

The only 15 pin port found on most laptops is a 15 pin VGA video connector.

Most laptops dont name any port 1. i think they normally start at 6-8. Youll need to make one port 1 or 2

need to change your usb to port1.

If your laptop has a built in UART (many do for a docking station) then you need to disable it or at least reassign it to COM4 or something. Then that should free up either COM1 or COM2 which you can assign to your USB adapter.

I cant figure out how to assign ports... I bought a new windows 7 compatible usb to 9 pin adaptor in the mail, coming soon. And my new laptop ends up uninstalling microtech software every time i shut the system off for some reason... i tried the method above where i go to control panel etc etc, but no "port" or "com" listed. Any ideas on how to change one of my usb ports to com1? thanks.

from what ive found and i have tried on Windows 7, you seem to not be able to assign com ports on your usb connections.

From within Device Manager, do a properties on the USB adapter. It is usually in the Port Settings tab, or you may need to click the Advanced button.

As for it uninstalling everytime you reboot, that is quite odd. Do you have some kind of imaging software installed? I believe certain versions of Windows 7 have a setting to restore the system back to original configuration upon boot. Is this turned on?

Microtech still wont connect even after i adjusted the com ports... Stupid windows 7. I cant firgure it out, if my friend cant get it, then im stuck and may just get frustrated and buy the dam handset.

Get a cheap laptop running Windows XP, 2000 or 98.

Then again, USB serial adapters often suck for EMS use. I have a PCMCIA adapter with a real UART that always works. They are about $100, but well worth it.

Are you using microtech's laptop adapter dongle? The serial to usb adapter from radio shack won't work without microtechs laptop adapter dongle before the usb adapter from radio shack. I think they have the serial port on the microtech unit wired wierd so you HAVE to use their expensive dongle to connect to it.

Lap Top Hook Up To Microtech
 

This worked for me!

Windows XP (usb to 9 pin Serial adapter) from office max.

How did you get vista to recognize the com ports/usb driver? Its pissin me off!! Got a sabrent 9 pin to usb cable inline with the adapter and nothing!

Man! Great question.... I have an old lap top for the Microtech with Windows XP.

Everything else is Mac products.

But someone here MUST know. Hopefully they'll chim in.

What worked for me was post #4 of this thread.

HTH.

fang luck IV tried everything above and I'm not getting Any luck here. please anybody with a hands on chime in..

still no luck here using vista. bump

if you search around there is free versions of the software with only two com port pull down options and others with four
i suggest you keep googling till you get the 4 com port option version
and /or find an old PC with the serial port

I'm about to see if I can get this going on a Macbook pro running windows 7, lmao.

Wish me luck.

As with any USB to serial adapter, the drivers do have to be installed, generally before the adapter is plugged in for the first time. If it's some generic adapter of unknown origin you may be able to track down the driver from another manufacturer, as they all tend to use the same chipset (Prolific is one popular chipset).

If you have the choice, use a PCMCIA or ExpressCard adapter. They typically have a real UART on board instead of relying on the host computer to emulate one in software.

I'm wondering if I should spend the money to get the IOGear one since the drivers are easily accessible, and they have them for Windows 7. Then run the MicroTech software in Windows XP mode.

I managed to get it working in win 7 but I had to a use couple different serial to usb converters before it was happy.

I dont want to open a old post on purpose but,

anybody find out what adaptor works the best with windows 7 for the MT?

maybe where you bought it and how much would be some nice info.

Thanks,
Jon

I use a Prolific adapter made by Startech.

The other choice is an ExpressCard like this one:
1 Port ExpressCard Serial Adapter Card | ExpressCard Serial Adapters | StarTech.com

It contains a hardware UART which will always work, with everything.

thanks for the info Aaron.

So far I have tried:
Sabrent USB 2.0 to Serial (9 pin)
$14.99
Office Depot
(didnt work )

GIGAWARE® USB TO SERIAL CABLE
Details Gigaware USB to Serial Cable : Cables, filters & adapters | RadioShack.com
$24.99
(would connect, but comes up with "ON Comm error #" even when comm's are set

so I think I'll try the Prolific for sure.

same error
 

i know this is an old thread but i have a lt10 with a serial usb dongle and i cant connect keeps on saying on comm error # how did you solve it
note i previously had a 9pin dongle with and adapter and that worked fine.
i tried all different drivers, diff os, correct settings but keeps on giving me the "ON comm error #"

bump?

i use FTDI chipset adapter and have good luck with them.

ok problem is if you install the drivers from microtech efi on windows 10 it does not work.

you need to plug it in then say get drivers from windows update, then it works.

this is for windows 10 with the USB dongel not the RS232

Windows 11
 

Mines doing same thing. Just brought new cable and dongle but won't connect brings up the gauges but just times out or refreshes back to connect screen please help so fustraing

Hello,

Ive spend up to now a few hours trying to get a ltx-12s to talk to the software. it doesnt. Ive did the things from post #4 to all the com ports I tried. I tired a laptop with win10 with a native com port; Ive tried a laptop with win7 with 3 differente ftdi based com to USB and ive tried an old normal computer with a native com port running windows XP.

always I have the same outcome wich is that the software seems to connect; although the display on the top left keeps saying "connecting please wait" and displays gages but no data is coming in and it does also not show any maps if I click on it. when I power down the ecu or unplug the serial cable it notices it and goes back to the home screen in the disconnected mode.

I also have an old MT-12 which does the same but I think this ecu is not even meant to be tuned used a laptop? Is there anything else worth trying before I throw them ecus in the bin?

what I maybe can also mention is that when plugged in the ecu lits the green led and red red one blinks slowly like 3 second or so period. I have the ecu on the bench and just connected the ground, battery and 12v ignition to a 12v supply. when powering on one hears a relay click in the ecu