Mig welding on efi vehicle

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wildstang

Founding Member

Apr 8, 1999

217

0

0

Orange, Vermont

Oct 14, 2004

#1

• Oct 14, 2004

• #1

I have to do some mig welding on my 92 ranger and was wondering if most people disconnect the battery or just leave it and weld. My concern is I don't want to potentially fry the computer. Would running a chain or wire and grounding from the frame to the ground be sufficient?

Thanks for any suggestions.

 

1320stang

Founding Member

Nov 13, 1998

4,329

23

89

Edmond, Oklahoma

Oct 14, 2004

#2

• Oct 14, 2004

• #2

Just disconnect the positive on the battery. What your worried about is backfeeding the ground side of the system. Using a set of jumper cables to ground the body to a metal fence post or if your in a metal shop building, to structure, sure wouldn't hurt.

 

R

Ronstang

New Member

Apr 4, 2004

1,294

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0

Houston Texas

Oct 14, 2004

#3

• Oct 14, 2004

• #3

You really should disconnect the computer and it's ground also. I always take the computer all the way out just to be safe.

 

Glen's 1965 5.0

Founding Member

Feb 5, 2001

477

0

0

Tomball,Texas

Oct 14, 2004

#4

• Oct 14, 2004

• #4

I disconnect mine also.