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-   -   should there be a resistance across gauge elements ? (http://forums.pelicanparts.com/porsche-911-technical-forum/1059675-should-there-resistance-across-gauge-elements.html)

ty901 04-30-2020 11:16 AM

should there be a resistance across gauge elements ?
 
just for fun I thought I'd check this before installing.
I get a minor resistance on the TEMP gauge... about 150 ohms. the PRESS side appears open. this gauge is from a '71. is this normal ?
I have a similar gauge from '75 that behaves in the same way and another from '79 that gives a resistance on both elements.
input appreciated
http://forums.pelicanparts.com/uploa...1588274153.jpg

jbell959 04-30-2020 07:03 PM

Sent you a PM as well, but figured I'd post here also. Use your meter, set to ohms, and measure G to ground and G to 12V. You should have a resistance on both. However, the easiest way to test these gauges is to connect 12V and ground then use a little jumper wire connected to ground and touch it to the G terminal. When G is grounded the meter should be pegged all the way up.

ty901 04-30-2020 07:48 PM

thanks again. greatly appreciated.


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