I pulled my fuel rail wit injectors yesterday because I noticed a hiss coming from the passenger side injector...When I pulled out the injectors..all were clean except the one that was leaking air...the o ring around the injector seating (no the injector itself) was torn and the whole injector was covered in oil...I cleaned it up and replaced the seals..Could that be a blown piston ring?

 

nobody knows???

 

I dount a blown piston ring wil get oil on your injectors. It'd have to go past the intake valve to get on it. Maybe a bad valve seal tho.. not to sure on this.

 

Post pics If u can

 

It's not uncommon for oil to make its way into the intake through the crankcase vent...if that injector wasn't sealed properly, some of that oil may have reached it that way. I'd just run it for a while and see if the oil builds back up, assuming everything else is fine at the moment.

 

I didn't take pictures..sorry. But it was leaking so that does sound right. Thanks..I will check it today to see what it looks like