Yes, there is. I mentioned that in a previous post here that could have been the noise he was hearing in the fuel rail. That can have an annoying click if you get close enough to it. I don't know if that would give the large leak code or not. Was that part of the "new" engine, or was that transferred from the car?
The vent solenoid seems to be the more frequent problem. It doesn't seal properly when the system tries to do its vacuum test, but the purge solenoid has come up once or twice, too. As has the hose from the purge solenoid to the cannister.
Black 2000 SSEi, Silverstar Headlights, Angel Eyes fogs, 3rd brake light overlay, hi-flo cat, drilled 180 degree thermostat, Intense FWI, PCM, shift kit, and 3.4 Pulley. Solid front mount.