 Testing oil pressure and head temp sensors, need help from electrical gurus! |
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| mobymutt |
 Oct 1 2017, 05:15 PM
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Senior Member  Group: Members Posts: 553 Joined: 16-December 13 From: Kingston, Ontario, Canada Member No.: 16,770 Region Association: Canada  |
Trying a new thread, with less words, since my last one was ignored. (IMG:style_emoticons/default/chair.gif)
How do I test the stock oil pressure and head temp sensors to see if they work? They aren't wired to anything, and I don't have gauges for them. Thanks! Matt |
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| Dave_Darling |
Oct 1 2017, 07:23 PM
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914 Idiot Group: Members Posts: 15,063 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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The stock CHT sensor and the stock oil temp sensor both are thermistors. They are things that vary their resistance depending on temperature. So you use an ohmmeter to check them; connect one probe to the connector on the sensor, and connect the other to whatever the sensor is grounded to.
The stock CHT sensor runs on the order of 2500 ohms when cold, down to 100 or less when the engine is at operating temp. I do not remember the resistance range for the oil temp sender. --DD |
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Posts in this topic
mobymutt Testing oil pressure and head temp sensors Oct 1 2017, 05:15 PM
troth Put one lead of your ohmmeter on the connector wir... Oct 1 2017, 07:11 PM troth The oil pressure sensor I don't think would ha... Oct 1 2017, 07:47 PM
Dave_Darling
The oil pressure sensor I don't think would h... Oct 2 2017, 01:08 PM mobymutt Great, thanks! Oct 2 2017, 06:57 AM |
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