Reversed one of my batteries!

beaverliner

Seaman Apprentice
Joined
Jun 9, 2011
Messages
43
There is no antidote for human stupidity. I was excited about a sunny day and suffered from a brain fart while connecting one of my batteries and reversed the polarity!! Result fried the alternator & regulator. Motor is a 1998 omc 454 fuel injected with vp dp outdrive. My quetion is about the efi computer... What is the risk that its dead? My mechanic will look at the boat during the week and will advise but i thought I'd ask... Your opinions are appreciated
 

Grub54891

Vice Admiral
Joined
Jun 17, 2012
Messages
5,911
Hopefully the efi is ok...but.....who knows till its checked out and running.
 

UncleWillie

Captain
Joined
Oct 18, 2011
Messages
3,995
Disconnect the cable to the bad alternator, attach the Battery CORRECTLY, and crank the engine.
If it starts, the computer survived.
 
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