[Gmecm] '165 expertise???

[Mark Mansur]

In my opinion the issue is almost certainly the ECM. In the same vehicle, 
I've had two '165s give me this problem (lockups after anywhere from 10 
seconds to 10 minutes of otherwise perfect data logging where a full ECM 
power down is needed to reconnect), and the third so far has not (it's been 
well over 2 years now). I've been using the same interface (and software =) 
for years now. I can only conclude that the ECM is the issue. This also 
seems to be the experience of a lot of people that I've helped over the 
years.

It's a very frustrating problem, no doubt, since an otherwise perfectly 
healthy ECM may exhibit this issue, and there's no guarantee that a new ECM 
will fix the issue.

-M

----- Original Message -----
From: "James Panter" <9jim30 at charter.net>
To: <tech_auto at bellsouth.net>; <gmecm at diy-efi.org>
Sent: Sunday, April 08, 2007 9:05 AM
Subject: Re: [Gmecm] '165 expertise???

I don't know about l65's in particular but I believe that all these ECM
connections have serial connection problems to various degrees.   Also the
devices which "tune" the ECMs like the  chip burners and various
programmers.  My very limited expertise is that different laptops (I suppose
based on the BIOS) connect much more easier than others.  For example, I
tried connecting with a FAST ECM recently for two days with an IBM Thinkpad
without success trying all the Comm ports settings and Serial port hook-ups,
then hooked up a Dell and had success immediately.  It gets to be
discouraging sometimes!.  Jim

----- Original Message ----- 
From: "Dan Grostick" <tech_auto at bellsouth.net>
To: <gmecm at diy-efi.org>
Sent: Saturday, April 07, 2007 8:45 PM
Subject: [Gmecm] '165 expertise???


>
> Are there any '165 experts left????
> I've been having issues with the serial interface hanging, seems to be
> something a '165 is know for. I replaced my ECM with a newer factory
> rebuilt version, still getting serial interface hangs....
> I'm using  a MAX232 interface. The hangs happen with different laptops. It
> will run from 3-15 minutes and then lock up....
>
> Dan
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