Afternoon all.
I have read some others issues with fuel pressure and tried some suggestions and nothing seems to work. As most car issues can be specific to the whip.. here goes.
I put in a Walbro 255lph fuel pump few weeks ago and new fuel filter..
I bought an adjustable Aeromotive FPR (35-70 psi)
Hooked up a fuel pressure guage to make sure all was right and got 0 psi. But the car runs fine.
When I turn the key on the pump primes and i noticed the fuel pressure goes up to 10 then drops. I can keep Turning the key on and off a few times and the pressure will only go to 30 but drops right after the 2 second prime time.
Car running at idle the pressure is 30. I adjusted the FPR to see if I could get it up but maxes out at 35.
Thought the pressure would be 39 running ? So wrong FPR? Do I need a 30-65 one ?
Thoughts, suggestions would be appreciated
No codes other than 15 and 51 (koeo)
Also, the process to test fuel... take off the vaccume line and plug it? Leave the fitting on the FPR where that line goes open or plug that too?
I have read some others issues with fuel pressure and tried some suggestions and nothing seems to work. As most car issues can be specific to the whip.. here goes.
I put in a Walbro 255lph fuel pump few weeks ago and new fuel filter..
I bought an adjustable Aeromotive FPR (35-70 psi)
Hooked up a fuel pressure guage to make sure all was right and got 0 psi. But the car runs fine.
When I turn the key on the pump primes and i noticed the fuel pressure goes up to 10 then drops. I can keep Turning the key on and off a few times and the pressure will only go to 30 but drops right after the 2 second prime time.
Car running at idle the pressure is 30. I adjusted the FPR to see if I could get it up but maxes out at 35.
Thought the pressure would be 39 running ? So wrong FPR? Do I need a 30-65 one ?
Thoughts, suggestions would be appreciated
No codes other than 15 and 51 (koeo)
Also, the process to test fuel... take off the vaccume line and plug it? Leave the fitting on the FPR where that line goes open or plug that too?