Wiring question 1996 4.3 Mercruiser 2BBL

Bansheex13

Seaman
Joined
Jun 18, 2008
Messages
72
I have a 1996 Marada with the 4.3 Mercruiser 2BBL and the motor wiring harness has 1 black wire with a loop end that just hangs free. I thought it was a ground wire at first so I grounded it none of my accesories (blige,blower lights etc.) would work.As soon as I ungrounded this mystery wire everything worked again,and no blown fuses.Does anyone know what this wire is? The harness is factory and uncut-unmolested, so its not someones rig job,but its puzzling?
 
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