putting neg- battery terminal on first before pos+
If you put the neg- terminal on your battery first before the pos+ what will happen.
I put my battery back on after putting it on charger for the winter and when I installed it I put the black terminal for the pos+ side on (which I see goes to the frame only) but did'nt see the red lead terminal till after I put on the neg- side.
After about 30 seconds I was getting smoke from wires going to my oxygen sensor which goes into the exhaust pipe.
Went to BMW shop and got new one along with new battery because I did'nt put the gel battery on a gel charger so they thought I probably shorted the battery and caused my problems.
I have an earlier post about the gel battery but now remember about not having the pos+ red lead connected at first and think maybe that coused my problem.
After putting on new oxygen sensor and battery my ground wire that goes to computer smoked really bad afer 30-45 seconds.
Durring all of this every time I hook up neg- terminal to battery the fuel pump motor always turns on with the ignition key off.