Select the Device Manager from the list at the left. Back to home page. Hard for the average person to know what is compatible and what is not. Be certain not to bend the pins. Also be sure the drivers are correctly installed before attempting to adjust any settings. Looking at a way around this problem including going with a Bluetooth connection which is another learning curve for me. Open MiniTerminal as above in step 7,8.

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Check if this part fits your vehicle. I found one driver that claimed it was good for windows 10, but when I installed it, it said that I needed a 64 Bit compatible version Refer to eBay Return policy for more details.

USB-Serial Adapter Connectivity

I get a driver error in windows. Set to COM1 if it is free.

Interest will be charged to your account from the purchase date if the balance is not paid in full within 6 months. No part of this manual may be reproduced or changed without written permission from James Murray, Ken Culver and Philip Ringwood.

Learn More – opens in a new window or tab Any international shipping is megssquirt in part to Pitney Bowes Inc.


If tests A and C pass, but B fails then you most likely do not have firmware installed on your processor – double check that you have loaded it and retry the ‘portcheck’ step above. I power mine off the lighter to avoid the dropout. If tests A, B and C all pass but you are having problems with the tuning software, it is most likely a settings problem within the tuning software itself. Finding the settings varies slightly depending on the operating system.


Be sure to use only the latest drivers with your USB-serial adapter. Firmware serial comms test Note! In this case it is normal megasqhirt TunerStudio to report no connection and for the firmware loopback tests to fail. Subject to credit approval. A good serial adapter can be much faster, and a lot more reliable.

Most drivers allow you to change the com port number through the device manager. Unfortunately, that adapter is now dead and I can’t make more checks. For additional information, see the Global Shipping Program terms and conditions – opens in a new window or tab. Please enter a number megasquuirt than or equal to See all ggperformanceny has no other items for sale.

It was causing major confusion with a customer because it was “known good” working with other MS3s, but failed to work on MS3-Pro.

I remember the invention.

Wish I had the same luck but seems my tablet won’t connect. Sales tax may apply when shipping to: Image not available Photos not available for this variation.


question about serial to usb for use with megasquirt – The Forums

Take a note of the COM port number listed above. For additional information, see the Global Shipping Program terms and conditions – opens in a new window or tab This amount includes applicable customs duties, taxes, brokerage and other fees.

Sadly I want to keep RS to talk to another module but thought Megzsquirt drop this here sedial case someone wants to look in to it So I did some Googling and ran across this web page http: As long as it auto connects in a reasonable time that doesn’t concern me.

If that is ok, there might be something wrong on the Megasquirt end of things – perhaps you made an assembly error with the MAX ST chip or associated capacitors – check for poor soldering or bridged traces. Delivery times may vary, especially during peak periods. This will bring up the Computer Management screen.