Hey everyone, I just finished installing my Lex/afm combo(aeromotive fpr, walbro fuel pump, RC 550, 57trim CT26). My problem is that I can't get my fuel pressure to raise up. I've tried adjusting the aeromotive FPR but that doesn't work..the gauge is reading at 11 lbs only with the vaccume line attached VERY LEAN! but when I unplug the vaccume line, it jumps to 20 lbs. I've check for fuel leaks on all lines and everything is clear. I'm pretty sure everything including the walbro fuel pump is installed right. What else could I check and do to raise up the fuel pressure?
Low Fuel Pressure
- Thread starter supranatural
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