Who welds on cars?

[alamantia]

I bought some weld on LCA brackets for my 2002 Z28. My brother has a TIG welder. If I grind off a spot on the rear for the clamp do I have to disconnect the negitive battery cable or PCM before we strike an arc?

[z28rob18]

we disconected the batt when we did the cage in my car

[alamantia]

guess it couldnt hurt right...

[greenformula92]

u might want to...there is an abs sensor in the rear

[z28rob18]

whats the worst that'll happen if you disconnect it? reset the clock? better safe

[WildBillyT]

whats the worst that'll happen if you disconnect it? reset the clock? better safe

Yup. It's easy enough to disconnect.

[LTb1ow]

whats the worst that'll happen if you disconnect it? reset the clock? better safe

PCM relearn. Which sucks on my car. But yea, other than that, simple insurance.

[deadtrend1]

Disconecting the battery is a good thing to do. i use this when welding on my car at work.

http://home.comcast.net/~tstrella/96ta/tqarmdamage/100_5182.jpg

[edpontiac91]

The instruction sheet from ALSTON Racing recommends that you disconnect the battery (before you weld on the SBF) to prevent a spike from cooking the computer. :nod: