Can injector seals be fitting with intake manifold (ECCS) in place?

Hi all,

My CA s13 has been parked up for a while and I want to start driving it again. Tried to start it and it looks like the injector seal from the rail to the injector on the cylinder nearest the cabin is leaking badly. Can this be changed with the inlet manifold in place or does it all need to come off?

Regards
IM

Intake manifold can stay on, but you’ll have to near enough strip everything off it. Not a hard job


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Much appreciated, it gives me a bit of confidence to tackle it.