not sure where to ask this but here goes, "purchased a 1982 280zx that had been parked in a garage for 14 years, great shape and after putting a new battery in it it started right up. After replacing a few fuel lines that were brittle and popped. the fuel pump stopped working. I dropped the tank had it cleaned and was able to clean and unstick the fuel pump. after putting everything back together the pump comes on and spins when the power is on but it wont pump? Is the pump bad or is there something in the system that is telling it not to pump? Any help would be greatly appreciated.