D-180 CHT Readings Go Crazy

jerrynich@gmail.co

I love flying!
Joined
Jul 29, 2012
Messages
4
The CHT on my #5 cylinder (Jabiru 3300) rises from ambient temperature to 700+, as soon as I power up my D-180. I switched #3 and #5 sensors but #5 indications still go wild and the #3 (with the old #5 sensor) reads correctly. Connecting the #5 harness leads together with no sensor attached gives ambient temperature. Both ends of the harness appear to be solid. Ideas?
 

kellym

I love flying!
Joined
Sep 29, 2013
Messages
272
Faulty pins/connection maybe? Or maybe the input is fried in the unit.
Replace the stock spade connectors with Electronics International OLC-2 connectors. If that doesn't fix it, you need new probe, which you can reuse same OLC-2 connector and eliminate all connector induced erratic behavior.
 
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