Quote:
Originally Posted by i_am_socket
I made a serious OOPS and forgot to follow rule #1 of electronics: disconnect the power first.
I checked the 12v source to ground with the car off completely and it had power, so it wasn't an ACC line. Great, so I just mistakenly swapped the wires now I'll swap them back!
One blue spark later and now there's no power on that 12v line and my car won't start. Did I just fry my ECU?
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Good now I dont feel so bad. I just did the same thing on the 6000 wagon when I installed the guino a little while ago. First thing I did was install the wires before the snow came. I didnt disconnect the power, but I am always careful and keep any hot wire bent away and taped off and keep it from shorting against anything. Kept it that way for weeks till I got it done.
Then when I went to install the guino, I trimmed all the wires the same length. At the same time. Stupid me, it didnt occur to me that the wire cutters would bridge all 4 wires and short something out. It must have burned some fusible link because it didnt blow any fuse. So I bridged it into the constant power at the radio. Thankfully its been running fine ever since. Next summer Ill probably figure out what blew and fix it right.