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temp sender wiring help

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Old Mar 14, 2008 | 08:24 PM
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Default temp sender wiring help

I want to use the factory temp sending unit for my auto meter gauge. I have an 01 LS1, it has a 2 wire temp sending unit. Can I get a 3 wire sending unit from a 98 and hook the 3rd lead to my auto meter gauge? If so does anyone have the wiring schematics for the 98 sending unit. Which pins go to what lead? Thanks.
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Old Mar 14, 2008 | 10:41 PM
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anyone out there?
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Old Mar 14, 2008 | 11:28 PM
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I`m not going to say that you cannot use a 98 sending unit, but I am going to bet that if you do the reading on the gauge will not be accurate.

http://www.autometer.com/tech_faq_an...px?sid=1&qid=2

Why not use the correct autometer sender and put it in the extra hole in the pass head
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Old Mar 15, 2008 | 02:27 AM
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ok I want to add onto this question... I have the 98 LS1 and ofcourse the three Wire Temp sensor, which one goes to the Gauge? My swap is on the Stock 240sx DashBoard will it work?

Thanks
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Old Mar 15, 2008 | 08:24 AM
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As was said before, it could potentially work although it would be inaccurate. What use would a gauge be if it didn't read the correct temperature?
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Old Mar 15, 2008 | 11:49 PM
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The dark green wire is the output to the gauge.
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Old Mar 16, 2008 | 08:35 AM
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Thanks G-Body... do you have an Idea if it will work with the stock 240sx Guage?! Accurate?
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Old Mar 16, 2008 | 10:16 AM
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The ohm range on the oem 98 three wire is 0-90 ohms. see what autometer is and you can get close.
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Old Mar 17, 2008 | 12:25 AM
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Originally Posted by wajouba
Thanks G-Body... do you have an Idea if it will work with the stock 240sx Guage?! Accurate?
I would guess that the most cars use a resistance based temp sender arrangement, so it will probably make the gauge move, but as far as accuracy your guess is as good as or better than mine.
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