Injector pintel caps

[Irukandji]

Is there any harm in running injectors with damaged pintel caps? I've been looking at the injectors and I can't see any purpose for them other than to have the o-ring seated. Can anyone enlighten me as to why they're so important?
Reason why I ask is because my stock injectors have broken caps, and I need to use them since I'm selling my sr injectors.
Thanks
-ben

[240sxaddict]

take them to napa and get them replaced for cheap...

[Exas Spec D]

I recently bought a set of SR20DET injectors and one has a broken cap. Is it possible to use the KA24DE injector caps with the SR20DET injectors? Like... switch them or something...