I would definitely not put bolts or plugs of any kind in those pressure lines. That is what I originally did, and I got regen after regen no matter what I did. As soon as I unplugged those lines(like everybody else), I haven't had a regen since over about 1,200 total miles. The fitting I used is just a small, approx 1/4" diameter pipe with male barb ends on each end. I spliced the lines together with this so the pressure between them is always equal. Lousianna Pipefitter had a better idea it sounds like. Just remove the short hose and plug the other end of the long hose onto the originall fitting where the short hose plugged in to the sensor. This has the same effect as my splicing the two lines together, but it is simpler and doesn't hang as low. I will probably change mine to this. Thanks.