welding radiator support
 

This is a noob question but I see people welding in cars all the time. roll cages etc. and I always wonder.

I have to tack on a couple of pieces to the radiator support for the radiator to sit on. My question is, do I have to remove the battery or fuse boxes or anything like that? i've always been confused as to how welding parts of a car affects the cars electrical system.

thanks guys.

Re: welding radiator support
 

Would it burn up the PCM?

Re: welding radiator support
 

just attach your ground to a good clean piece of steel and start welding.

nothing bad has ever happened to me or my car doing it like this.

Re: welding radiator support
 

Disconnect the Neg. terminal on the battery.

Re: welding radiator support
 

I always disconnect my ECU on my talon, but my ECU is damn expensive and im a bit anal about it. I disconnected the negative as well,

I've welded on other vehicles to do quick things when people are in a rush and don't bother disconnecting the battery or ecu, never seems to cause an issue.

Re: welding radiator support
 

just pull the ecu out for safe measure.

Re: welding radiator support
 

Thanks for the info guys.
I'm paranoid so I'll probably just undo everything. Just wanted to what everyone else does.