It's a metric thread. They are m12 by 1.5mm I'm thinking, I can't remember the size off the top of my head,
If the plug has been blown out due to high pressure the cp3 pump is not going to work properly. I have yet to see one blow the plug out and last any miles afterwards.Ok so on my way home for thanksgiving I started watching my fuel gauge steadily drop. Thought it was a loose fuel return line. So I tightened it up. Finally got home and realized that plug between the fca and the gear pump is gone and it's gushing fuel out right there. What size plug is that? What can I do for a temporary fix until I can get back to my house and order something new. I'm on a tight deadline here and have to be back to school by Monday. Someone please tell me anything and everything you can. Thank you!!!!