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Ever since installing the G3X/EIS in my Mooney M20J with an IO-360-A3B6, I've noticed fuel pressure fluctuations, sometimes as much as +/- 5 psi (normal is about 23 psi), but usually less. Sometimes it goes away by itself with no change in engine parameters. It doesn't seem to correlate with altitude or anything else. Switching tanks does not make a difference. Turning on the boost pump increases the fuel pressure a couple of psi but doesn't affect the variation. It does not seem to affect engine operation.
I have seen a number of threads on various sites (including this one) about this, and there are a lot of helpful suggestions, but I don't recall ever reading someone reporting a root cause and fix. So, if anyone has experienced this and fixed it, I'm all ears.![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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I have seen a number of threads on various sites (including this one) about this, and there are a lot of helpful suggestions, but I don't recall ever reading someone reporting a root cause and fix. So, if anyone has experienced this and fixed it, I'm all ears.
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