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How does the temperature sensor work?

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Old 07-10-2011, 09:27 PM
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How does the temperature sensor work?
Hey guys,
I just got a 95 4runner 3L engine and I just need to know if anybody knows how the temp sensor works. If it opens when it gets hot or what? Thanks!
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Old 07-11-2011, 03:54 AM
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WHICH temp sensor are you talking about?
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Old 07-11-2011, 08:20 AM
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I believe it is the EGR temp sensor. It's in between the firewall and fuel injection unit. Sorry first Toyota engine! Not familiar with it.
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Old 07-11-2011, 08:31 AM
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I think that one is variable resistance, resistance of sender changes with temperature.
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Old 07-11-2011, 09:20 AM
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Originally Posted by 4Crawler
I think that one is variable resistance, resistance of sender changes with temperature.
Correct. See the chart here from the FSM about what reading should be:
tempsensor_readings
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