•The engine does not start, or starts briefly then stops: impurities in the tank, clogged filter screen.
•The pump is not allowing fuel to flow: pump short-circuit.
•engine acceleration irregularity, maximum engine performance is not achieved: the fuel pressure or flow is too low.
•The pump unexpectedly stops working: wear and tear of the pump.
•The engine does not restart after having been shut off for a prolonged period of time: the pumping mechanism is eroded.
