Why weld on the exhaust system? For a stock style system the pipes can be
changed one at time if one is cracked. Once they crack they will keep
cracking. The GoWesty exhaust pipes are also interchangeable with the
original set up so you can even go that route one pipe at a time.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Alistair Bell
Sent: Wednesday, September 2, 2015 12:31 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Welding on Van - ECU consequences?

I always disconnect battery and ecu. I worry about high frequency stuff
making mischief during welding the van. I know many don't bother. Maybe it's
the welding machine I use, maybe it's just fear of the unknown. Doesn't take
much effort to disconnect so why not.

Alistair

> On Sep 1, 2015, at 9:26 PM, Steve Williams
<steve@WILLIAMSITCONSULTING.COM> wrote:
>
> Hi,
>
> I am taking my van in tomorrow for a bit of patching on my exhaust system.
>
> It suddenly occurred to me that they may be using an electric welder
> on my vehicle rather than a gas welder.
>
> Is it recommended/mandatory to unplug the ECU if electric
> (arc/mig/tig/etc) welding is being done on a 1991 Westfalia?
>
> Thanks,
> Steve W.