Megasquirt 2 V3 / Microsquirt

Hello everyone


i'm very new to Microsquirt, having bought the unit back in sept 08 for my prject only just got round to installing it on my VW GOLF GTI MK1 , running a 2.1L 16V Engine c/w 45mm Jenvey DTH Throttle bodies.

I've loaded all the programs onto the pc and purchased the USB Adaptor from DIYAUTOTUNE :mrgreen:

The first and major problem i am having is the laptop will not connect to the Microsquirt ECU.

The comms port is showing port 18 connected and correct speed etc, ecu powered up on 12v dc supply but still will not connect

Is this a common problem :?: apparently any port over 10 will create an issue

Microsquirt ECU & Loom




Heres the engine build thread

http://www.clubgti.com/forum/showthread.php?t=186028

 

some of then usb adaptors arnt that good have you tried adjusting the fifo buffers on the pc?

im not 100% on microsquirt need to be activated on the tuning software?

i know with the msns extra you have to go into configer then activate it

 

think a pm to toyotec is in order lol

 

I would surject buying a new USB adapter, i bought mine from amazon and it came with software (this is important) and it was only about 10 worked first time with my MS ECU.

 

i got the USB From DIYAUTOTUNE as they are the ones that are recommended 30 thou

http://www.diyautotune.com/catalog/usb-serial-adapter-works-with-megatune-p-67.html

 

The Microsquirt is same as Megasquirt 2 V3 set - up so should be straight forward. i thought anyway.

 

Did yours come with a software disc?

if not that will be the problem.

 

MS2 on version 3 PCB is really a MS1 with a faster CPU. Microsquirt is a surface mount PCB with a better enclosure. Your problem is the USB adaptor some work and some do not.

 

Cheers

this is the one they recommended that i'm trying to use.

any links for alternative one

 

Ross Tech. TomIOW bought one from there to use on his USB only laptop. Went there to cal the car and it works without any issues.

 

Only if the cable works

 

I was just going to say what Rubjonny said above. On a USB to serial adapter that I often use for another purpose, the virtual COM port number actually changes, quite randomly, each time the adapter is plugged in. So it's worth looking at what port number has been assigned in device manager on a regular basis. The port you assign in MegaTune HAS to equal this port.

I find it quite bizarre that DIYAutoTune should supply an adapter that doesn't work with MS, considering they're selling it for the very purpose.

 

Looking at the forum's this seems to be the most common problem when using Megasquirt !

 

This one is the one i bought, as it comes with the al important software that is required to set it up and get it running.

Good luck.

 

Cheers for the link !

Ordered one, good price too compared to what i paid for the other

 

I'm aware that certain adapters don't work too well with MS, but I'd have thought that someone like DIYAutoTune would have been careful to supply one to you that is properly tried and tested with MS. Are the ones that DIYAutoTune supply known to sometimes not work?

Could you clarify what you mean "the comms port is showing..."? Is port 18 the port that Device Manager is telling you has been assigned to the USB device?

When you're in Device Manager, look at the COM ports, as opposed to USB devices. Within the COM ports you should find a new 'virtual' port belonging to the USB dongle. What is its number, and is that the number you've used in MegaTune?


Edit: Ah, you've ordered another one anyway. Reading the DIYAutoTune page you linked to, it's clear that he did a lot of testing on that type of dongle he supplied to you, and so I think it's still worth checking your configuration.

 

The com port in device manager was showing com18 and so was Megatune.

i have changed both to com1 and tested it no response and then done the same in com2, still no joy.

i will wait for the new USB Adaptor to arrive and try that.

 

just got it working !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

got rid of the USB Male to female extention lead that came with it and plugged the USB to Serial Adpator straight into the laptop

and hey presto ! we have action on Megatune

 

yay just shows you what a fine line between getting coms and not getting coms

let the fun begin goodluck lol