Fuel Pressure Alarm Settings

by Peter Clifford in 912iS Technical Questions 6 weeks ago

Hi To All

I have a 912is engine installed in a Sling 2 with the Fuel Pressure sensor connected to my G3X avionics.

Currently I have an issue with the G3X showing me a FUEL Pressure Warning each time I turn BOTH fuel pumps ON. With one pump ON the alarms disappear but return when I have both pumps ON for take off and landing.

I would appreciate if anyone could share with me the Alarm parameters that they have set on their G3X unit to eliminate this issue.

Thank you in advance.

Re: Fuel Pressure Alarm Settings

by Maximo Lema » 3 weeks ago

Maximo Lema

3 33 94

Is the alarm set for some specific value of fuel pressure ?

Usually one sets this alarm with minimum and maximum values, so the GEA 24 sends to G3x an alarm either with Low or High pressure values, and G3x shows this alarm.

Have you checked on the configuration mode of the G3x, the settings of "Engine parameters" ?

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Re: Fuel Pressure Alarm Settings

by Roger Lee » 3 weeks ago

Roger Lee

131 5.4k 5.49k

I've seen a couple of aircraft Mfg's make their lower and upper limits on fuel pressure a little too low or high. You may need to make a 1-2 psi adjustment DEPENDING on what your settings are now.

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell

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Fuel Pressure Alarm Settings

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