....but the injectors shouldn't try to inject anything until the ecu senses the engine trying to start (alt. starts charging and rpm signal shows up). So just running the fuel pump should only produce fuel leaking onto the intake if 1) the UPPER o-ring is leaking (at the fuel rail) or 2) the body of the injector itself is leaking; leaking INTO the intake should only occur if there's an internal injector problem. The lower o-ring shouldn't even come into play yet.