Question about Floscan 201b 9 Sensor Old 264 Sensor

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I was comming from a trip with a 1/4 gas tank and the boat start lossing power like out of fuel until the engine stop. I have to bi-pass the floscan sensor and filter and the engine start working fine again. After reaching the marina I conected back the floscan and filter and engine work fine at dock in neutral at about 2000rpm. This problen happened last year too and I put a bigger filter. I have a 454 mercruiser engine with carburator and mecanical fuel punp. Can you please help me to find problem. Thank.

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Some questions, is the breather free?, could you have water in the tank causing the filter to swell and partially block? Running the motor in the marina is not the same as when under way, the fuel demabd is much higher under load. Also you could put a cleat section of fuel ine betwen the carb and pump and see if it is sucking in air bubbles.

Posted on Jun 08, 2010

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