I'd bet the sensor 2 to 1 odds. Very frustrating that the Crown replacement is required to fix certain 05-06 OPDA's (even though Tom's was good), but the Crown sensor is trash. How long must Crown have known about this????? Dorman no better I don't think. I had some serious issues after I replaced my good OPDA that took me a half day to figure out, but it wasn't the sensor, just getting everything lined up...I hope this works out soon for your sake Tom....so you can get out there into those quieter unseen serene places...enjoyed our time with you...blessings...