Wiring question

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   I have a 1995 Ski Nautique with the 351 GT40 engine.  Next to the oil filter there is a small oil pressure sending unit and a larger unit.  I have a blue wire and 2 brown wires.  I think the blue wire goes to the larger unit but what about the 2 brown wires?      

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jarnold Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: April-08-2011 Location: Pa. Status: Offline Points: 7	Post Options Post Reply Quote jarnold Report Post Thanks(0) Quote Reply Topic: Wiring question Posted: May-04-2013 at 11:11pm
	I have a 1995 Ski Nautique with the 351 GT40 engine. Next to the oil filter there is a small oil pressure sending unit and a larger unit. I have a blue wire and 2 brown wires. I think the blue wire goes to the larger unit but what about the 2 brown wires?

lewy2001 Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: March-19-2008 Location: NSW Australia Status: Offline Points: 2234	Post Options Post Reply Quote lewy2001 Report Post Thanks(0) Quote Reply Posted: May-05-2013 at 9:01am
	The larger unit is the oil pressure sender with blue wire attached. The other unit is the SLOW oil pressure switch. It is shown in picture below with shielding around the wires they should be tan wires with a black tracer.
	If you're going through hell, keep going 89 Ski <a href="http://www.correctcraftfan.com/diaries/details.asp?ID=5685" ta

jarnold Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: April-08-2011 Location: Pa. Status: Offline Points: 7	Post Options Post Reply Quote jarnold Report Post Thanks(0) Quote Reply Posted: May-15-2013 at 12:16am
	Thanks for the information for the correct wire locations. The oil pressure guage is working but the red warning light in the middle of the dash for low oil pressure and/or high water temperature is not lit when I turn the key switch on. I have power in both brown wies that are attached to the SLOW oil pressure switch. If I ground one end of my test light I have power on both sides of the red warning light with the key on. All the other guages on the dash work. How can I tell if the red light is bad? What else can I check to trouble shoot my problem?

Wiring question

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