Originally Posted by BIGef
Okay It was a vacuum leak from the intake manifold gasket.
Apparently i took out the whole intake manifold again.
And found out that i forgot to scrape the old gasket off >.< FML
Making is leave space for the vacuum to go in. Also coolant went inside #4 cylinder intake manifold. -_-
Will fuel pressure effect if its leaking from the banjo bolts on the fuel filter?
Yeah,even a pc of an old gasket not thoroughly scraped off BOTH mating surfaces will cause a vacuum leak!
Replace the aluminum crush washers that are between both sealing surfaces of the banjos,you do not want fuel leaking onto a hot engine/manifold,etc... But yeah,a leak will affect fuel pressure if it's big enough,but NONE are acceptable!!! = FIRE if not repaired!!! G' Luck!