cossie fuel pressure HELP!!
#1
cossie fuel pressure HELP!!
i fitted a 044 fuel pump a while ago and set fuel pressure to 3.5 bar vac pipe off as it should be.
since then i have re wired the fuel pump power and earth, i thought it best to re check the fuel pressure as the pump was working much better with the new wiring,
i couldnt get the pressure below 4.2 bar, so i assumed the reg was faulty ,changed the reg, and i still cant adjust the pressure below 4.2 bar, if i put pressure on the small hose to simulate boost the fuel pressure raises fine, but if i put a vaccum on it, the fuel pressure will not drop
i think the pump is now making to much pressure? i have 13.5 volts at the pump, any ideas?
since then i have re wired the fuel pump power and earth, i thought it best to re check the fuel pressure as the pump was working much better with the new wiring,
i couldnt get the pressure below 4.2 bar, so i assumed the reg was faulty ,changed the reg, and i still cant adjust the pressure below 4.2 bar, if i put pressure on the small hose to simulate boost the fuel pressure raises fine, but if i put a vaccum on it, the fuel pressure will not drop
i think the pump is now making to much pressure? i have 13.5 volts at the pump, any ideas?
#5
Advanced PassionFord User
iTrader: (5)
Originally Posted by JTECHSAFF
i suppose that is a possibility, does the return just dump straight in to the tank? so i could take the fuel cap off and try an air line down it?
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26-04-2021 12:09 PM