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Posted

Hey guys, been having this issue since shortly after getting my 1978 M20J model. Check the video out, the fuel pressure will read steady on the ground and sporadically in flight then do what is displayed in the video. Already had the Fuel pressure sending unit replaced which did nothing and just had the engine overhauled so when the engine was reinstalled I had them check the grounds for the gauges. Thanks for any help!

 

- Garrett

IMG_0839.MOV

Posted

Hey guys, been having this issue since shortly after getting my 1978 M20J model. Check the video out, the fuel pressure will read steady on the ground and sporadically in flight then do what is displayed in the video. Already had the Fuel pressure sending unit replaced which did nothing and just had the engine overhauled so when the engine was reinstalled I had them check the grounds for the gauges. Thanks for any help!

 

- Garrett

 

Mine does identical thing, fine on the ground, and once in flight is pegged to the right.

Posted

For those that can't view the video it just starts fluttering all the way off the scal and then will peg all the way on the upper side in the black. Would that be a symptom of a potential bad sending unit?

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