In reply to Jehannum :
Yep, just seats an o-ring. I've pulled the plugs and the o rings look fine. They're only a month or so old, and were the recommended viton seals from EFI express. Torque value's 37 ft-lb, but I can't get there without the socket slipping out, so I resorted to the BFH and a screwdriver. And then when I got really frustrated, I might have used the airhammer lol
