my car has been idling like crap ever since i replaced the fuel rail

i put new o-rings on them, but the teflon bands above the lower o-ring are all broken

will this cause a problem? do I need to get new ones? my injector seal kit didn't come with any

 

anyone? ttt

 

those yellow things?

you don't need 'em... i think they're more for identification of lbs than anything else.