So I replaced my OPS two weeks ago with advance auto parts BWM brand. 30 miles out of town this morning at 515 the pressure drops to zero. The pressure sender had been reading low ever since I put it in but was constant. It fluctuated between ten and zero with it being at zero more often than not. Decided to idle home and never had any engine knocks or any problems. Pretty sure that means it is that OPS and I need to get official jeep one. On a side note got pulled over for driving with flashers on. Since we were going hunting and we had shotguns in the car that was a little nerve wracking.