Quote Originally Posted by Chev malibu View Post
Exactly! The first thing any manual tells you before starting most work on a vehicle is. remove the ground (negative) cable from the battery. It makes sense to me that my switch wired this way, will function as I desire it to.
That's because of the potential spark that could ignite battery fumes if you remove the positive cable first.


Now my engine is EFI, has a computer, and electric fuel pump, so I'm thinking that in an emergency situation, IE; smoke, fire, sparks, or accident, I should turn off the ignition switch, then turn off the battery switch. Engine is off, Fuel pump is off, any shorts will stop immediately.. makes sense to me. Oh and perhaps I should add grab fire extinguisher..lol
Not necessarily so, any capacitance in the circuit could fuel the fire until it is totally discharged.
Denny, now see what you started...
And the NHRA rulebook states that a battery disconnect will interrupt the positive side per techinspector1