eclipsyco
10+ Year Contributor
- 588
- 16
- Nov 19, 2011
-
Somewhere in,
Central_America
So guys searching around I've found a few threats about this but not one with a direct answer so a few months back I installed a Fuelab AFPR and a walbro 400 pump along with 6an lines (feed and return) and aftermarked fuel rail.
The problem I'm having is that fuel pressure drops fast after I shut off the car. As I turn off the key pressure will go to about 20psi which I read is normal and from there in about 6 minutes drop to 0psi. Is that normal? Is here where I have my doubts. I have read that some will take hours or even over night to drop to 0. Most of them have the aeromotive AFPR but AFPR is AFPR doesn't really matter the brand does it, I mean is not like mine is a cheap AFPR anyway.
Cause my main problem is that it will take 3 or 4 cracks to get the car started when cold, once it builds pressure it starts at the first crank and I didn't have this problem before the AFPR and pump install.
I did bought a brand new install kit for this pump but I didn't lube the o-ring on the pump could this be the problem? Or is normal the pressure drop on the AFPR?
The problem I'm having is that fuel pressure drops fast after I shut off the car. As I turn off the key pressure will go to about 20psi which I read is normal and from there in about 6 minutes drop to 0psi. Is that normal? Is here where I have my doubts. I have read that some will take hours or even over night to drop to 0. Most of them have the aeromotive AFPR but AFPR is AFPR doesn't really matter the brand does it, I mean is not like mine is a cheap AFPR anyway.
Cause my main problem is that it will take 3 or 4 cracks to get the car started when cold, once it builds pressure it starts at the first crank and I didn't have this problem before the AFPR and pump install.
I did bought a brand new install kit for this pump but I didn't lube the o-ring on the pump could this be the problem? Or is normal the pressure drop on the AFPR?