Excuse me for lacking specifics, as my paperwork and installation manual are at the hangar, and I'm going from memory...
I'm in the very last stages of finishing my RV-10, and the panel is driving me nuts. The immediate issue I'm trying to solve seems pretty straight-forward, so I sense there's a simple solution that I'm missing. It has to do with the pressure sensors (manifold, fuel, and oil) and the oil temp sensor. (They're all the ones provided by Garmin in its engine sensor kit; the engine is a Lycoming IO-540.)
None of the sensors give any readings. They all read zero. All of the pressure sensors have the same three colored wires: black, green, and red. I've assumed the red wire is power (which seems correct, since I checked and they all were receiveing 5 volts from the 720 plug and the GSU). I assumed green was the signal, and black the ground. But the Garmin installation manual calls for a "hi" and a "lo", which I assumed was the green and black wires, repectively. Is that my problem? Today I reversed them hoping that I guessed incorrectly, but that didn't seem to help.
And the oil temp probe only has two black wires. Again, the Garmin manual says "hi" and "lo", but since the wires are the same, does it matter? I've tried both possibilities, but no response.
So far, the G3X seems like a real pain, and I miss the simplicity of the Vision Microsystems unit I installed in my RV-6A. (That's frustration you're hearing.)
Any advice would be much, much appreciated!
Thanks,
Jerry
I'm in the very last stages of finishing my RV-10, and the panel is driving me nuts. The immediate issue I'm trying to solve seems pretty straight-forward, so I sense there's a simple solution that I'm missing. It has to do with the pressure sensors (manifold, fuel, and oil) and the oil temp sensor. (They're all the ones provided by Garmin in its engine sensor kit; the engine is a Lycoming IO-540.)
None of the sensors give any readings. They all read zero. All of the pressure sensors have the same three colored wires: black, green, and red. I've assumed the red wire is power (which seems correct, since I checked and they all were receiveing 5 volts from the 720 plug and the GSU). I assumed green was the signal, and black the ground. But the Garmin installation manual calls for a "hi" and a "lo", which I assumed was the green and black wires, repectively. Is that my problem? Today I reversed them hoping that I guessed incorrectly, but that didn't seem to help.
And the oil temp probe only has two black wires. Again, the Garmin manual says "hi" and "lo", but since the wires are the same, does it matter? I've tried both possibilities, but no response.
So far, the G3X seems like a real pain, and I miss the simplicity of the Vision Microsystems unit I installed in my RV-6A. (That's frustration you're hearing.)
Any advice would be much, much appreciated!
Thanks,
Jerry