This past weekend I was flying from Idaho back to Portland.  I was at 10,500 with an OAT around 0ºC (don't actually have a thermostat but it was cold).  My EIS started blinking at me and the fuel flow rate had jumped to a bit above 9gph.  I pulled the throttle back to about 4800rpm and it sat at ~7.5gph for a minute then dropped back to the normal ~4.7.  It did this two more times over the next hour or so.

I have no idea what might be causing this and am a new owner of this plane/engine.  Thoughts?

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