fuel leak

[Keasbey]

Something like one month ago, one of my injectors starts to leak, so I bought new O rings and everything for all 4 injectors, and changed them,cleaned up the fuel rail, but it's still leaking, what could be the cause of that? My fuel rail is #1... I think it is always the same injector that it leaking..

And I think this injector is clogged, is there a way to test it? Starting to be annoying you know.. lol

 

[RustBucket]

Move the suspect injector to another cylinder. If the leak moves with the injector, replace the injector. If the leak stays at the original cylinder, replace the rail.