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500efi mysterious plug..?

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Old 05-04-2013, 07:15 PM
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Default 500efi mysterious plug..?

i tore my motor down to freshen the top end..well today i put it back together and have a spare plug that comes out of the front of the harness that has the injector wiring in it. Its a 2 wire plug that has a black and a yellow wire in it. for the life of me I cant find where it goes...! someone help please!
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Old 05-04-2013, 08:25 PM
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water temp
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Old 05-04-2013, 09:09 PM
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if thats what it is it must not be used on my boat. I have the type that slides over a single pole sending unit.
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Old 05-04-2013, 09:14 PM
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Originally Posted by sutphen 30
water temp
its for the ecu.its in the lower part of the intake manifold by the thermostat.or at least thats where its supposed to be.
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Old 05-04-2013, 09:19 PM
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should have both on the 500 single post for the dash gauge 2 pin weather pac style for the computor.
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Old 05-05-2013, 06:38 AM
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ok. thanks guys. Ill look there.
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Old 05-05-2013, 08:58 AM
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It's probably an extra. Snip it off and toss it.
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Old 05-05-2013, 12:57 PM
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Originally Posted by POWERPLAY J
It's probably an extra. Snip it off and toss it.
haha right. Yea, I found where it goes. it was hidden under the thermostat housing.

Thanks guys
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Old 05-05-2013, 03:00 PM
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Originally Posted by Drock78
haha right. Yea, I found where it goes. it was hidden under the thermostat housing.

Thanks guys
I know it's too late but it took me a while to find this pic so I posted anyway
Attached Thumbnails 500efi mysterious plug..?-012.jpg  
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Old 05-05-2013, 03:20 PM
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Thanks! Perfect pic
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