ok so i have a 93 gsr its been sitting for awhile. i went to test the fuel system today and i heard the fuel pump kick on (walbro 255) and when i went to cycle the key again the pump didnt turn on i checked the relay and all the fuses they are good. the car has little gas in it bc i drained most of it while it sat. my question is. is there a fail safe on the fuel pumps that they wont prime if there is to little fuel so they dont burn up or would the fuel pump be bad from sitting from some time?