Re: alfa-digest V8 #276

["Sasha Nackovski" <snackov@domain.elided>]

Mark,

Instead of disconnecting the battery when welding on cars with sensitive
electronics, I use a product made by Matson here in Australia called an
"Anti-zap Service Minder". It is a small box that you hook up to the battery
terminals that filters out any power surges. It may be worth investing in
one if you plan to do lots of welding. I have welded on lots of late model
cars using this gadget and so far have had no power spikes (fingers
crossed...). See  www.matson.com.au

Otherwise, disconnecting both battery terminals should be sufficient, and
disconnecting the ECU if you want to be ultra safe.  I am not sure who makes
the ECU on the Uno Turbo, but I have found the older Bosch stuff (L-Jet
etc.) to be fairly resilient when it comes to power surges.

Regards,

Sasha Nackovski- Melbourne, Australia.

>
>Date: Sat, 8 Dec 2001 21:33:02 +1300
>From: Mark Battley <m.battley@domain.elided>
>Subject: MIG welding and electronics
>
>Quick question from someone who is new to having electronics in his
cars....
>
>What precautions should be taken when MIG welding on cars that have EFI to
prevent the ECU being fried?
>
>Presumably(?) remove battery leads - but is it also wise to unplug the ECU
from the wiring harness???
>
>Anything else?
>
>Thanks,
>
>Mark Battley
>Auckland, New Zealand
>
>1973 Alfa Romeo 2000 GT Veloce (electronics, what electronics...)
>1989 Fiat Uno Turbo (careful where you point that MIG....)
>1989 Fiat Croma

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