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Plug behind front bumper?

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Old 11-30-2011, 05:33 PM
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Default Plug behind front bumper?
I took my bumper off the other day to bedline it and this plug was behind it. Anyone know what it is for?

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Old 11-30-2011, 05:35 PM
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I saw the same thing the other night. It's honestly probably the stock fog light harness.
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Old 11-30-2011, 05:35 PM
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fog lights most likely
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Old 11-30-2011, 05:42 PM
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My XJ has that same plug and my fogs are in place too.
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Old 11-30-2011, 05:43 PM
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Originally Posted by Metalgearmurder
My XJ has that same plug and my fogs are in place too.
What he said! ^^^
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Old 11-30-2011, 05:56 PM
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Originally Posted by Metalgearmurder
My XJ has that same plug and my fogs are in place too.
So it must not be for the fog lights.
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Old 11-30-2011, 05:58 PM
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I heard it's for the external temp. sensor if you had an OHC.
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Old 11-30-2011, 06:06 PM
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The plug on the temp sensor on my 90 looks different. I'm wondering if I can check it and if it affects mileage.
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Old 11-30-2011, 06:18 PM
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Flintstone - that sensor isnt for the engine, its for the temp read-out inside the vehicle.
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Old 11-30-2011, 07:12 PM
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Thanks much. I have no "thermometer" inside...I though maybe the ECM might use ambient temp to help do its black magic with the mixture. Maybe I have wires in the dash I could plug a readout into.
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Old 11-30-2011, 08:20 PM
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Originally Posted by DFlintstone
Thanks much. I have no "thermometer" inside...I though maybe the ECM might use ambient temp to help do its black magic with the mixture. Maybe I have wires in the dash I could plug a readout into.
let me know what you find!
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Old 01-09-2012, 04:19 PM
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So if that is for the fog lights, shouldn't there be another plug for the other fog light? Or do you need a pigtail so you can connect both fog lights?
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Old 01-09-2012, 04:29 PM
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it's the external temp sensor. i had to plug the sensor into that when I installed mine.
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Old 01-09-2012, 04:31 PM
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Originally Posted by Jallen9
it's the external temp sensor. i had to plug the sensor into that when I installed mine.
Thanks. I was hoping it was for fog lights.
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