so ive been having the biggest problem for about 2-3 weeks now. my fuel pump is not priming, not running, nothing. i thought maybe the gas tank froze or lines froze but i really doubt it. my egi or (ECU) relay is buzzing as well with the key in the off position. when i test the battery it has 11.7v. my car is a 1992 nissan 240sx with a walbro 255lph fuel pump.
my question is, do i NEED 12v to the pump just to get it to prime? will a low-ish battery like mine really cause it to not turn on at all?
Yes, the fuel pump will work. You might have something clogging the pump...could be anything...dirt, cloth, etc. Remove the pump and check it out...you can also then check to see if it is running at all.
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