GRT Oil Temperature sensor

cbretana

Member
Joined
Jul 10, 2019
Messages
275
I had a problem a ew months ago with high Oil Temps, that turned out to be due to accumulated sludge in the oil cooler. Once I sent the oil cooler out to be pressure flushed and cleaned, the problem went away. In the process of discussing this with many folks on this forum and the COBA forum, it was mentioned that the Dynon oil pressure sensor, that only has one lead attached, relies on the engine crankcase ground and is not as reliable as sensors that have two leads, one for signal and one for ground. So I bought one

What do they say? If it's not broke... Well I just installed it, and unlike the Dynon sensor, which would read from normal ambient temperature when I first turn on the EMS, and rise up to 180-185 F after running the engine for 15-20 minutes, the new GRT sensor reads -25 degrees when I first start the engine, and rises to about 85-90 degrees after running for some time.

Is there a calibration or initialization procedure I need to do on this sensor to get it to read properly?
 

cbretana

Member
Joined
Jul 10, 2019
Messages
275
As Marc suggested I simply had to go to the EMS pin "mapping" screen, find the row for pin 7, and change the drop down selection for pin "sensor" to the one for GRT oil temperature sensor....
 
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