Hi guys,
I have a S5 T2 swap. The engine was rebuilt recently. Somebody swapped the electronic oil pump with a manual one from an S4. The engine was running lean. After removing the LIM I found that both water ports on the LIM had o-rings installed but only there was one port open on the LIM but 2 ports were open on the iron.
Should both ports be open on the LIM?

thanks