I thought they were quick disconnects but mine are as melted (the collar) I couldn't get them apart.
intend to concur on o-rings if someone pulled those injectors so many variables go in affect from stacked wrong .install botched.oem just woreout.yank em and ck em.I still think bad injector o-rings could cause this. Especially now that you've mentioned the driver's side is getting plenty of oil. The reason is, the ICP sensor only detects pressure on that side. If the torn o-ring is on the passenger side, there will be no oil pressure over there and the ICP sensor will never know about it. PM me your address and I'll even buy the orings and have them sent to you. It's not a terrible job and there are plenty of tutorials out there. Here's one - https://www.riffraffdiesel.com/cont...el_7.3L_Injector_Replacement_Instructions.pdf