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EDM350 engine monitor issue

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Skippy

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I’m guessing the answer is a short or check my grounds, but here’s the issue I jsut found on my EDM350.

Powered it up today and it showed 3PSI oil pressure despite not have run the engine. It also registered a manifold pressure despite not even having a sensor installed, but somehow showing .7 inches of MP.

The oil pressure eventually went to zero, normally I would not care but the unit auto populates which gauges appear on the display based on sensor inputs, so until I can get that MP to read zero it will show that gauge when I want it blanked out and gone. It has operated pretty well for the past 7 years until today. I emailed JPi tech support but have zero confidence they will contact me back. Anyone else have a similar issue ?
 

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