Re: alfa-digest V8 #276 - MIG welding and electronics

[AlfaNeely@domain.elided]

In a message dated 12/08/2001 1:33:37 PM Central Standard Time, 
owner-alfa-digest@domain.elided writes:


> 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
> 

       It is wise to always make removal of the battery cable the first step 
to any automotive repair.  Heck, disconnect the battery when you wash the car 
just to be save.
       That said, I have welded with MIG and stick on various Alfas and other 
cars with electronic injection.  On the Alfas I think I have always removed 
the battery cable.  On occasion I have removed the computers, but that was 
more to do with the extent of the repair than as a precaution.  I also know I 
welded up the trailer hitch on my 94 Ford Motorhome without disconnecting 
anything.  
       I have not had any problems.  Guess I should "knock on wood."  Is that 
slang known down under?

Ciao,
Russ Neely
Oklahoma City

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